subject:"\[Kernel\-packages\] \[Bug 1736390\] Re\: openvswitch\: kernel oops destroying interfaces on i386"

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-07-24 Thread Brad Figg

*** This bug is a duplicate of bug 1813244 ***
https://bugs.launchpad.net/bugs/1813244

** Tags added: cscc

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid
Status in linux source package in Disco:
  In Progress
Status in openvswitch source package in Disco:
  Invalid

Bug description:
  == SRU Justification ==

  Commit 120645513f55 ("openvswitch: Add eventmask support to CT
  action.") introduced a regression on i386. Simply running the
  following commands in a loop will trigger a crash rather quickly:

  ovs-vsctl add-br test
  ovs-vsctl del-br test

  == Fix ==

  Disable the logic introduced by the above commit on i386.

  == Regression Potential ==

  Low, the above commit introduced a new feature. Per upstream, the
  result of not having this feature results in higher CPU usage and
  potential buffering issues in user space.

  == Test Case ==

  See SRU justification above.


  Original bug description:

  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde = 

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  system then becomes unresponsive; no further interfaces can be
  created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-04-08 Thread Juerg Haefliger

*** This bug is a duplicate of bug 1813244 ***
https://bugs.launchpad.net/bugs/1813244

** This bug has been marked a duplicate of bug 1813244
   systemd cause kernel trace "BUG: unable to handle kernel paging request at 
6db23a14" on Cosmic i386

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid
Status in linux source package in Disco:
  In Progress
Status in openvswitch source package in Disco:
  Invalid

Bug description:
  == SRU Justification ==

  Commit 120645513f55 ("openvswitch: Add eventmask support to CT
  action.") introduced a regression on i386. Simply running the
  following commands in a loop will trigger a crash rather quickly:

  ovs-vsctl add-br test
  ovs-vsctl del-br test

  == Fix ==

  Disable the logic introduced by the above commit on i386.

  == Regression Potential ==

  Low, the above commit introduced a new feature. Per upstream, the
  result of not having this feature results in higher CPU usage and
  potential buffering issues in user space.

  == Test Case ==

  See SRU justification above.


  Original bug description:

  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde = 

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  system then becomes unresponsive; no further interfaces can be
  created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-04-05 Thread Andrea Righi

I've done a test with the fix from bug #1813244 and the problem doesn't
seem to happen. Probably a duplicate bug.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid
Status in linux source package in Disco:
  In Progress
Status in openvswitch source package in Disco:
  Invalid

Bug description:
  == SRU Justification ==

  Commit 120645513f55 ("openvswitch: Add eventmask support to CT
  action.") introduced a regression on i386. Simply running the
  following commands in a loop will trigger a crash rather quickly:

  ovs-vsctl add-br test
  ovs-vsctl del-br test

  == Fix ==

  Disable the logic introduced by the above commit on i386.

  == Regression Potential ==

  Low, the above commit introduced a new feature. Per upstream, the
  result of not having this feature results in higher CPU usage and
  potential buffering issues in user space.

  == Test Case ==

  See SRU justification above.


  Original bug description:

  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde = 

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  system then becomes unresponsive; no further interfaces can be
  created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-03-28 Thread Po-Hsu Lin

There is an openvswitch related issue, bug 1813244. Perhaps these two
are identical?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid
Status in linux source package in Disco:
  In Progress
Status in openvswitch source package in Disco:
  Invalid

Bug description:
  == SRU Justification ==

  Commit 120645513f55 ("openvswitch: Add eventmask support to CT
  action.") introduced a regression on i386. Simply running the
  following commands in a loop will trigger a crash rather quickly:

  ovs-vsctl add-br test
  ovs-vsctl del-br test

  == Fix ==

  Disable the logic introduced by the above commit on i386.

  == Regression Potential ==

  Low, the above commit introduced a new feature. Per upstream, the
  result of not having this feature results in higher CPU usage and
  potential buffering issues in user space.

  == Test Case ==

  See SRU justification above.


  Original bug description:

  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde = 

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  system then becomes unresponsive; no further interfaces can be
  created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-03-11 Thread Juerg Haefliger

** Description changed:

+ == SRU Justification ==
+ 
+ Commit 120645513f55 ("openvswitch: Add eventmask support to CT action.")
+ introduced a regression on i386. Simply running the following commands
+ in a loop will trigger a crash rather quickly:
+ 
+ ovs-vsctl add-br test
+ ovs-vsctl del-br test
+ 
+ == Fix ==
+ 
+ Disable the logic introduced by the above commit on i386.
+ 
+ == Regression Potential ==
+ 
+ Low, the above commit introduced a new feature. Per upstream, the result
+ of not having this feature results in higher CPU usage and potential
+ buffering issues in user space.
+ 
+ == Test Case ==
+ 
+ See SRU justification above.
+ 
+ 
+ Original bug description:
+ 
  Reproducable on bionic using the autopkgtest's from openvswitch on i386:
  
  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
- [   41.421246] *pdpt = 1d62c001 *pde =  
+ [   41.421246] *pdpt = 1d62c001 *pde = 
  
  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---
  
- 
  system then becomes unresponsive; no further interfaces can be created.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid
Status in linux source package in Disco:
  In Progress
Status in openvswitch source package in Disco:
  Invalid

Bug description:
  == SRU Justification ==

  Commit 120645513f55 ("openvswitch: Add eventmask support to CT
  action.") introduced a regression on i386. Simply running the
  following commands in a loop will trigger a crash rather quickly:

  ovs-vsctl add-br test
  ovs-vsctl del-br test

  == Fix ==

  Disable the logic introduced by the above commit on i386.

  == Regression Potential ==

  Low, the above commit introduced a new feature. Per upstream, the
  result of not having this feature results in higher CPU usage and

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-03-11 Thread Juerg Haefliger

https://lore.kernel.org/lkml/20190305104010.6342e9b9@gollum/

** Also affects: linux (Ubuntu Disco)
   Importance: High
   Status: In Progress

** Also affects: openvswitch (Ubuntu Disco)
   Importance: Undecided
   Status: Invalid

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid
Status in linux source package in Disco:
  In Progress
Status in openvswitch source package in Disco:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-01-22 Thread Christian Ehrhardt 

Hmm, so are we giving up on this?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2019-01-19 Thread Joseph Salisbury

** Changed in: linux (Ubuntu Bionic)
 Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

** Changed in: linux (Ubuntu Cosmic)
 Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

** Changed in: linux (Ubuntu Artful)
 Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

** Changed in: linux (Ubuntu)
 Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-10-15 Thread  Christian Ehrhardt 

Repro crash with the case - still triggering

Installed 32bit Test kernel

It boots this one:
Linux 4.15.0-36-generic #40 SMP Fri Oct 12 00:17:54 UTC 2018

Seems to have no "special" version suffix to identify it other than #40 and 
build time.
But #40 and the build time indicate this is the provided test kernel.

With that kernel it still fails.
Here an updated BUG output of that kernel:

[   74.352331] IP: add_grec+0x28/0x450
[   74.353422] *pdpt = 1df53001 *pde =  
[   74.355527] Oops:  [#1] SMP
[   74.356517] Modules linked in: veth openvswitch nsh nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache kvm_intel kvm irqbypass crc32_pclmul pcbc 
aesni_intel aes_i586 crypto_simd ppdev cryptd joydev input_leds 9pnet_virtio 
9pnet parport_pc parport mac_hid serio_raw qemu_fw_cfg sch_fq_codel ip_tables 
x_tables autofs4 btrfs xor zstd_compress raid6_pq psmouse virtio_blk virtio_net 
i2c_piix4 pata_acpi floppy
[   74.367244] CPU: 2 PID: 0 Comm: swapper/2 Tainted: GW
4.15.0-36-generic #40
[   74.368932] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
[   74.370719] EIP: add_grec+0x28/0x450
[   74.371319] EFLAGS: 00010202 CPU: 2
[   74.372213] EAX:  EBX: dd92c360 ECX: 0006 EDX: dd92c360
[   74.373451] ESI: d7406600 EDI: d7406600 EBP: d8db7f34 ESP: d8db7ef4
[   74.374648]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[   74.375540] CR0: 80050033 CR2:  CR3: 1e3e1220 CR4: 001406f0
[   74.376881] Call Trace:
[   74.377301]  
[   74.377708]  ? pcpu_chunk_relocate+0x14/0x70
[   74.378426]  mld_ifc_timer_expire+0x10e/0x260
[   74.379328]  ? igmp6_timer_handler+0x60/0x60
[   74.380047]  call_timer_fn+0x2f/0x120
[   74.380654]  ? igmp6_timer_handler+0x60/0x60
[   74.381367]  run_timer_softirq+0x3b5/0x410
[   74.382519]  ? rcu_process_callbacks+0xc8/0x470
[   74.383287]  ? __softirqentry_text_start+0x8/0x8
[   74.384396]  __do_softirq+0xae/0x255
[   74.385000]  ? __softirqentry_text_start+0x8/0x8
[   74.385769]  call_on_stack+0x45/0x50
[   74.386367]  
[   74.386800]  ? irq_exit+0xb5/0xc0
[   74.387377]  ? smp_apic_timer_interrupt+0x6c/0x120
[   74.388355]  ? apic_timer_interrupt+0x3c/0x44
[   74.389085]  ? __sched_text_end+0x3/0x3
[   74.389728]  ? native_safe_halt+0x5/0x10
[   74.390851]  ? default_idle+0x1c/0x100
[   74.391621]  ? arch_cpu_idle+0x12/0x20
[   74.392388]  ? default_idle_call+0x1e/0x30
[   74.393390]  ? do_idle+0x145/0x1c0
[   74.394410]  ? cpu_startup_entry+0x65/0x70
[   74.395432]  ? start_secondary+0x18a/0x1d0
[   74.396275]  ? startup_32_smp+0x164/0x168
[   74.397098] Code: 74 26 00 3e 8d 74 26 00 55 89 e5 57 56 53 89 c6 83 ec 34 
89 4d e8 65 a1 14 00 00 00 89 45 f0 31 c0 f6 42 44 08 8b 42 10 89 45 cc <8b> 00 
c7 45 ec 00 00 00 00 0f 85 f1 01 00 00 8b 80 54 01 00 00
[   74.401207] EIP: add_grec+0x28/0x450 SS:ESP: 0068:d8db7ef4
[   74.402470] CR2: 
[   74.403158] ---[ end trace b2832e49d4542abf ]---
[   74.404247] Kernel panic - not syncing: Fatal exception in interrupt
[   74.405513] Kernel Offset: 0x900 from 0xc100 (relocation range: 
0xc000-0xdf7fdfff)
[   74.406968] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
[   74.408309] [ cut here ]
[   74.409079] sched: Unexpected reschedule of offline CPU#0!
[   74.410748] WARNING: CPU: 2 PID: 0 at 
/home/jsalisbury/bugs/lp1736390/bionic/ubuntu-bionic/arch/x86/kernel/smp.c:128 
native_smp_send_reschedule+0x3b/0x50
[   74.413690] Modules linked in: veth openvswitch nsh nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache kvm_intel kvm irqbypass crc32_pclmul pcbc 
aesni_intel aes_i586 crypto_simd ppdev cryptd joydev input_leds 9pnet_virtio 
9pnet parport_pc parport mac_hid serio_raw qemu_fw_cfg sch_fq_codel ip_tables 
x_tables autofs4 btrfs xor zstd_compress raid6_pq psmouse virtio_blk virtio_net 
i2c_piix4 pata_acpi floppy
[   74.423253] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G  D W
4.15.0-36-generic #40
[   74.424752] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
[   74.426392] EIP: native_smp_send_reschedule+0x3b/0x50
[   74.427240] EFLAGS: 00010096 CPU: 2
[   74.427817] EAX: 002e EBX: d9912fc0 ECX: d9945630 EDX: 0007
[   74.428854] ESI:  EDI: d994efc0 EBP: d8db7c70 ESP: d8db7c68
[   74.430058]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[   74.431608] CR0: 80050033 CR2:  CR3: 1e3e1220 CR4: 001406f0
[   74.432626] Call Trace:
[   74.433034]  
[   74.433610]  trigger_load_balance+0x10e/0x210
[   74.434335]  ? put_prev_task_idle+0x10/0x10
[   74.435294]  scheduler_tick+0x9e/0xd0
[   74.436057]  update_process_times+0x3f/0x50
[   74.436787]  tick_sched_handle+0x32/0x80
[   74.437458]  tick_sched_timer+0x38/0x90
[   74.438113]

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-10-12 Thread Joseph Salisbury

I built a i386 version of the Bionic test kernel with a patch from upstream. 
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1736390

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-10-09 Thread  Christian Ehrhardt 

Hi Joseph, I'm back from my PTO, but have to ask you again for an update
- as in the past I'll need 32bit kernels for this test

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-10-09 Thread  Christian Ehrhardt 

Note to myself test instructions carried from my original bug

Update Kernel:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1712831/comments/12
and
sudo qemu-system-i386 -hda autopkgtest-bionic-i386.img -enable-kvm -nographic 
-curses -m 4096

Test:
sudo autopkgtest --shell-fail --apt-upgrade --no-built-binaries 
openvswitch_2.10.0-0ubuntu2.dsc -- qemu --qemu-options='-cpu host' --cpus 8 
--ram-size=4096 ~/autopkgtest-bionic-i386.img

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-10-01 Thread Joseph Salisbury

I built a Bionic test kernel with a patch from upstream. The test kernel can be 
downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1736390

Can you test this kernel and see if it resolves this bug?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-20 Thread Joseph Salisbury

That should be good.  I just like to have the latest mainline already
tested in case upstream asks for it.  I'll ping upstream and see what
the next steps should be.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-19 Thread  Christian Ehrhardt 

Hi Joseph, due to some maas accident I got my test system destroyed by a 
coworker.
I tested v4.19-rc3 as I wrote in comment #51 - do you mind accepting that as a 
valid "test latest mainline" even thou it was not -rc4 as it would be now?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-17 Thread Joseph Salisbury

Could you give the latest mainline kernel a test before I ping upstream?  It is 
available from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc4

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-13 Thread  Christian Ehrhardt 

Thanks,
installed that in the test env, after a manual reboot I got:

$ uname -a
Linux autopkgtest 4.15.0-34-generic #38~lp1736390Commit12064551Reverted SMP Thu 
Sep 13 13:28:33 UTC  i686 i686 i686 GNU/Linux

The change is persistent into the autopkgtest:
autopkgtest [05:11:17]: testbed running kernel: Linux 4.15.0-34-generic 
#38~lp1736390Commit12064551Reverted SMP Thu Sep 13 13:28:33 UTC

The test kernel works fine where the other one failed.
To be sure I ran it multiple times and with different cpu options enables in 
KVM (e.g. to also run the DPDK tests which need sse3).

But they all worked, no crash.
That said - yes reverting that change seems to be the solution.
Yet for what was it needed and what would break if it is reverted?

commit 120645513f55a4ac5543120d9e79925d30a0156f
Author: Jarno Rajahalme 
Date:   Fri Apr 21 16:48:06 2017 -0700

openvswitch: Add eventmask support to CT action.

Add a new optional conntrack action attribute OVS_CT_ATTR_EVENTMASK,
which can be used in conjunction with the commit flag
(OVS_CT_ATTR_COMMIT) to set the mask of bits specifying which
conntrack events (IPCT_*) should be delivered via the Netfilter
netlink multicast groups.  Default behavior depends on the system
configuration, but typically a lot of events are delivered.  This can be
very chatty for the NFNLGRP_CONNTRACK_UPDATE group, even if only some
types of events are of interest.

Netfilter core init_conntrack() adds the event cache extension, so we
only need to set the ctmask value.  However, if the system is
configured without support for events, the setting will be skipped due
to extension not being found.


That is odd, I thought in the past we had identified an Ubuntu-sauce patch, but 
that is a normal upstream change.
I'd hope that other are affected as well and this is fixed, or could it be that 
we are affected by 1206455 due to some Ubuntu-sauce?

For the sake of checking if latest upstream (no sauce and 4.19-rc3)
might be better I ran the latest mainline kernel.

autopkgtest [05:21:50]: testbed running kernel: Linux
4.19.0-041900rc3-generic #201809120832 SMP Wed Sep 12 12:47:16 UTC 2018

But that is crashing still.

@James: can you estimate what we loose on non-i386 when reverting that change 
for now?
@Joseph: what would we do now, report upstream - if so what exactly a 
description and link sent to the author and the ML as we don#t have a fix yet?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-13 Thread Joseph Salisbury

There is a 32bit kernel now posted to:
http://kernel.ubuntu.com/~jsalisbury/lp1736390

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-13 Thread  Christian Ehrhardt 

While the tests that run on autopkgtest infra suggest it still is an
issue, I first I tried to reproduce as-is to be sure the trigger is good
(new release, new kernel, new OVS):

$ autopkgtest --apt-upgrade --shell --no-built-binaries 
openvswitch_2.9.0-0ubuntu1.dsc -- qemu --qemu-command=qemu-system-i386 --cpus 4 
--ram-size=4096 ~/autopkgtest-bionic-i386.img
$ autopkgtest --apt-upgrade --shell --no-built-binaries 
openvswitch_2.9.0-0ubuntu1.dsc -- qemu --cpus 4 --ram-size=4096 
~/autopkgtest-bionic-i386.img

While faster in the crash with more CPUs I eventually reduced to 1 to
have better (more clear) stack traces.

It hangs (tests POV) and crashes (main console running dmesg -w).

[   56.320025] BUG: unable to handle kernel NULL pointer dereference at 
[   56.320760] IP: add_grec+0x28/0x450
[   56.321137] *pdpt = 1ebe7001 *pde =  
[   56.321699] Oops:  [#1] SMP
[   56.322009] Modules linked in: veth openvswitch nsh nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache kvm_intel ppdev kvm irqbypass joydev 
9pnet_virtio input_leds parport_pc serio_raw 9pnet parport qemu_fw_cfg mac_hid 
sch_fq_codel ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq 
psmouse virtio_blk virtio_net i2c_piix4 pata_acpi floppy
[   56.325571] CPU: 0 PID: 240 Comm: systemd-journal Tainted: GW
4.15.0-34-generic #37-Ubuntu
[   56.326485] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
[   56.327356] EIP: add_grec+0x28/0x450
[   56.327712] EFLAGS: 00010202 CPU: 0
[   56.328052] EAX:  EBX: dda65420 ECX: 0006 EDX: dda65420
[   56.328651] ESI: dc489a00 EDI: dc489a00 EBP: d94c9f34 ESP: d94c9ef4
[   56.329259]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[   56.329774] CR0: 80050033 CR2:  CR3: 1e9adba0 CR4: 06f0
[   56.330379] Call Trace:
[   56.330623]  
[   56.330864]  mld_ifc_timer_expire+0x10e/0x260
[   56.331285]  ? igmp6_timer_handler+0x60/0x60
[   56.331699]  call_timer_fn+0x2f/0x120
[   56.332066]  ? igmp6_timer_handler+0x60/0x60
[   56.332489]  run_timer_softirq+0x3b5/0x410
[   56.332899]  ? rcu_process_callbacks+0xc8/0x470
[   56.53]  ? __softirqentry_text_start+0x8/0x8
[   56.333808]  __do_softirq+0xae/0x255
[   56.334163]  ? __softirqentry_text_start+0x8/0x8
[   56.334617]  call_on_stack+0x45/0x50
[   56.334971]  
[   56.335219]  ? irq_exit+0xb5/0xc0
[   56.335549]  ? smp_apic_timer_interrupt+0x6c/0x120
[   56.336022]  ? apic_timer_interrupt+0x3c/0x44
[   56.336451] Code: 74 26 00 3e 8d 74 26 00 55 89 e5 57 56 53 89 c6 83 ec 34 
89 4d e8 65 a1 14 00 00 00 89 45 f0 31 c0 f6 42 44 08 8b 42 10 89 45 cc <8b> 00 
c7 45 ec 00 00 00 00 0f 85 f1 01 00 00 8b 80 54 01 00 00
[   56.338295] EIP: add_grec+0x28/0x450 SS:ESP: 0068:d94c9ef4
[   56.338832] CR2: 
[   56.339163] ---[ end trace 6b06ace1457ab251 ]---
[   56.339616] Kernel panic - not syncing: Fatal exception in interrupt
[   56.340448] Kernel Offset: 0x900 from 0xc100 (relocation range: 
0xc000-0xdf7fdfff)
[   56.341293] ---[ end Kernel panic - not syncing: Fatal exception in interrupt


With that, try the new kernel.

Note: console after starting the test
$ sudo nc -U /tmp/autopkgtest-qemu*/ttyS0

Umm, I was stopped in my tracks realizing this is an amd64 kernel.
@Jsalisbury - I'll need i386 kernels to do this.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-12 Thread Joseph Salisbury

I built a Bionic test kernel with a revert of commit 120645513f55.  The test 
kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1736390

Can you test this kernel and see if it resolves this bug?

Note about installing test kernels:
• If the test kernel is prior to 4.15(Bionic) you need to install the 
linux-image and linux-image-extra .deb packages.
• If the test kernel is 4.15(Bionic) or newer, you need to install the 
linux-modules, linux-modules-extra and linux-image-unsigned .deb packages.

Thanks in advance!

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-12 Thread Joseph Salisbury

** Also affects: linux (Ubuntu Cosmic)
   Importance: High
 Assignee: Joseph Salisbury (jsalisbury)
   Status: In Progress

** Also affects: openvswitch (Ubuntu Cosmic)
   Importance: Undecided
   Status: Invalid

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid
Status in linux source package in Cosmic:
  In Progress
Status in openvswitch source package in Cosmic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-09-11 Thread  Christian Ehrhardt 

Hi Joseph,
neither me nor James have realized that this waited for a retest on our side.
The old kernel that you had linked is gone by now (together with Artful I 
assume) :-/

Would you mind prepping a new test kernel of your choice (This still is
an issue in cosmic, so whatever works best for you is ok) so that we can
check and verify if it helps?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  Won't Fix
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-03-19 Thread Joseph Salisbury

It looks like only commit 120645513f55 would need to be reverted in
v4.13.0-38.  Can you test the following test kernel:

http://kernel.ubuntu.com/~jsalisbury/lp1736390/

Be sure to install both the linux-image and linux-image-extra .deb
packages.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-02-23 Thread Joseph Salisbury

I'm still working on the bisect.  It looks like two commits may have
introduced the bug, which is slowing the bisect process.

I found that the following commit causes a kernel trace with rtmsg_ifa
as the EIP:

120645513f55 ("openvswitch: Add eventmask support to CT action.")

Reverting this commit allows the tests to work just fine in v4.12, which
freeze without the revert.  This is allowing me to bisect into newer
kernel versions now.

I'm bisecting further now to identify the commit that is causing the
trace with igmp_group_dropped as the EIP.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-02-12 Thread Joseph Salisbury

I'm still in the process of bisecting this.  Some of the testing that
did not exhibit the bug, does sometimes.  I need to run through the
prior testing I did to confirm whether the kernels were really good or
bad.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-02-07 Thread Joseph Salisbury

The first bisect report the following commit as the first bad commit:
2f34c1231bfc ("Merge tag 'drm-for-v4.12' of 
git://people.freedesktop.org/~airlied/linux")

However, because this commit is a merge, I have to perform another round
of bisecting between this commits parents.  I'll have another update
shortly.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-02-06 Thread James Page

Marking OVS tasks as invalid as we think this issue is in the kernel.

** Changed in: openvswitch (Ubuntu Artful)
   Status: Confirmed => Invalid

** Changed in: openvswitch (Ubuntu Bionic)
   Status: Confirmed => Invalid

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Invalid
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Invalid
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Invalid

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-02-05 Thread Joseph Salisbury

I'm still working on bisecting the issue down.  I should have another
update in a day or two.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-02-05 Thread James Page

@Joseph

Any update on your bisecting?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-31 Thread Joseph Salisbury

After some more testing, it appears v4.11 final does not have the bug.
Version 4.12-rc1 appears to be the first kernel version to hit the bug.
I'll run a few more tests to confirm this.  Once confirmed, I'll start a
bisect between v4.11 and v4.12-rc1.

If others want to try these two versions, they can be downloaded from:

v4.11: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11/
v4.12-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.12-rc1/

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-31 Thread Joseph Salisbury

** Changed in: linux (Ubuntu Bionic)
   Status: Fix Committed => In Progress

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  In Progress
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  In Progress
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-31 Thread Joseph Salisbury

The 4.10 based kernel does not experience this hang, but I am seeing it
with 4.12.  Maybe the 4.12 based kernels does in fact have the bug.
I'll test further to find out.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-31 Thread Joseph Salisbury

I'm swapping the bug back in and working on the bisect again.  For some
reason, all of the prior kernels that worked, are now freezing on the
test while "Stopping Links":

*** Configuring hosts
h1 h2 h3 h4 h5 h6 h7 h8 h9 h10 h11 h12 h13 h14 
*** Starting controller
c1 
*** Starting 2 switches
s1 s2 ...
INFO:root:Running TCP performance test
*** Iperf: testing TCP bandwidth between h1 and h14 
*** Results: ['20.9 Gbits/sec', '20.9 Gbits/sec']
INFO:root:Stopping network
*** Stopping 1 controllers
c1 
*** Stopping 15 links




Has anyone else seen this?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-12 Thread Joseph Salisbury

Thanks for the feedback, Christian!  This gives me enough to be able to
try and bisect this issue down now.  I'll post an update shortly.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Re: [Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-10 Thread ChristianEhrhardt

On Wed, Jan 10, 2018 at 5:45 PM, Joseph Salisbury
 wrote:
> Thanks for the feedback, Christian.  I would much rather install them
> manually.  I am able to do that without a problem.  However, I am unable
> to access the GRUB menu in the usual way to select a specific kernel.

If you test through autotest, then there isn't a good way to manually
intercept "while" running.

> I tried all the usual way, holding shift, modifying /etc/default/grub
> setting, but none seem to work.

Other than just making sure that grub picks the right default by
making sue the to-be-tested kernel is the latest I worked by modifying
grub.

Checking again if this still works ...
I had a zesty testbed to remove anyway, so I could kill it if needed.
By default it does boot "4.8.0-26-generic"

Note: working in guest image via:
$ qemu-system-x86_64 -m 1024 -smp 1 -nographic -net nic,model=virtio
-net user -enable-kvm -cpu kvm64,+vmx,+lahf_lm
~/work/autopkgtest-zesty-amd64.img

I installed 4.7.10-040710_4.7.10-040710.201610220847 from mainline
builds as it is older and therefore would not be selected by grub
automatically.
After install I checked autopkgtest output...

autopkgtest [07:54:48]: testbed running kernel: Linux 4.8.0-26-generic
#28-Ubuntu SMP Tue Oct 18 14:39:52 UTC 2016

Ok, now lets modify grub to boot the older kernel:
I found that (at least in this case) the BIOS boot partition kind of
breaks update-grub.
/dev/sda1  227328 25583582 25356255 12.1G Linux filesystem
/dev/sda14   204810239 81924M BIOS boot
/dev/sda15  10240   227327   217088  106M EFI System

The middle one is the odd one - that is the non efi compat grub img
storage area.
Anyway - to get around that I was adding:

$ apt-get install --reinstall grub-efi
$ echo "GRUB_DISABLE_OS_PROBER=true" | sudo tee -a /etc/default/grub
So as usual e.g.:
echo 'GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux
4.7.10-040710-generic"' | sudo tee -a /etc/default/grub
$ sudo update-grub

And  e voila:
autopkgtest [08:20:29]: testbed running kernel: Linux
4.7.10-040710-generic #201610220847 SMP Sat Oct 22 12:50:14 UTC 2016

Other than the extra hoop I had to jump for the BIOS boot there was
nothing special in my try.
And I'd assume that could as much appear on real HW.

I hope that helps to drive your test kernels.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ?

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-10 Thread Joseph Salisbury

Thanks for the feedback, Christian.  I would much rather install them
manually.  I am able to do that without a problem.  However, I am unable
to access the GRUB menu in the usual way to select a specific kernel.

I tried all the usual way, holding shift, modifying /etc/default/grub
setting, but none seem to work.

@James Page, how did you tell your image to test the mainline kernel in
comment #6?  Do you identify the position of the new kernel in
/boot/grub/grub.cfg then modify GREUB_DEFAULT in /etc/default/grub to
this number?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Re: [Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-07 Thread ChristianEhrhardt

On Fri, Jan 5, 2018 at 9:27 PM, Joseph Salisbury
 wrote:
> I'm able to install a kernel using kvm:
> kvm -m 512 -hda ./autopkgtest-artful-i386.img

If that works for you fine.

> Is there a way to modify the autopkgtest command line to tell it which
> kernel to boot?  When I have multiple test kernels installed, I usually
> just select them from the GRUB menu.  What would be the equivalent here?

I must admit, for automated tests I set the one to test as the default
booted kernel.

If you really want to bisect you might want to go a step further.
The tool to drive via qmeu is "autopkgtest-virt-qemu" and it has
"--qemu-options=".
That said (I never tried) you should be able to build (e.g. by bisect)
a valid kernel outside (make sure that it has all modules in a way to
work without having the kernel actually installed).
Via that you could use qemu options:
-kernel
-initrd
-append
as needed.
Once set up in a way to work you could really bisect through that.
OTOH that might be just as much work as installing them manually a few
times - so your choice what you prefer.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-05 Thread Joseph Salisbury

I'm able to install a kernel using kvm:
kvm -m 512 -hda ./autopkgtest-artful-i386.img

Is there a way to modify the autopkgtest command line to tell it which
kernel to boot?  When I have multiple test kernels installed, I usually
just select them from the GRUB menu.  What would be the equivalent here?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-05 Thread Joseph Salisbury

After running qemu-nbd:

ls /dev/nbd*
nbd0  nbd1  nbd10  nbd11  nbd12  nbd13  nbd14  nbd15  nbd2  nbd3  nbd4  nbd5  
nbd6  nbd7  nbd8  nbd9

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-05 Thread Joseph Salisbury

I'm running into an issue mounting the image to get a kernel onto it.
For some reason, I cannot mount /dev/nbd0p1:


sudo modprobe nbd

sudo qemu-nbd --connect=/dev/nbd0 ./autopkgtest-artful-i386.img

sudo mount /dev/nbd0p1 /mnt/test/
mount: /mnt/test: special device /dev/nbd0p1 does not exist.

sudo fdisk /dev/nbd0

Welcome to fdisk (util-linux 2.30.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): p
Disk /dev/nbd0: 12.2 GiB, 13098811392 bytes, 25583616 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xae40d318

Device  Boot Start  End  Sectors  Size Id Type
/dev/nbd0p1 * 2048 25583582 25581535 12.2G 83 Linux


fdisk can see that the nbd device has one partition, but I can't seem to
mount it.  Any suggestions?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-05 Thread Joseph Salisbury

@Christina,  Thanks for the info.  I am now able to reproduce the bug
using your steps.  Thanks again for that!

I'm going to dig deeper into this and see if I can bisect down to the
commit that caused this.  I next need to figure out how to swap in
different test kernels.  I think you explained how to do that in the
duplicate bug, so I'll take a look there.

I'll post an update shortly.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-04 Thread ChristianEhrhardt

@Joseph - if you mean 2nd level so:
Machine
->KVM
  -> $ autopkgtest-buildvm-ubuntu-cloud -a i386 -r artful -s 10G
That could be an issue - for 2nd level being famous for only working mostly.

But why would you do so - since the tests are in VMs they are already
more or less host release agnostic. You can run that on any host system
- although in general having "autopkgtest" from $RELEASE-backports is
often a good idea.

Just ran a check if buildvm works for me atm, and it did with the same
cmdline you had (Xenial + autopkgtest backport) - it "appears" to hang
at that stage, but is done after ~1-2 minutes. In 2nd level that could
as well be just way more inefficient and take much longer?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-04 Thread Joseph Salisbury

I'm attempting to reproduce the bug.  However, I get a hang when I run the 
following:
$ autopkgtest-buildvm-ubuntu-cloud -a i386 -r artful -s 10G

Attached is a screen shot of the hang.  It seems to be trying to boot
the image.

** Attachment added: "hang.jpg"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+attachment/5031209/+files/hang.jpg

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-04 Thread Joseph Salisbury

Also, I'm trying to run this on a VM instead of bare hardware.  Could
that be an issue?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-04 Thread Joseph Salisbury

I tried to build a test kernel with the patch set from Cong mentioned in
comment #18.  However, there was a build failure due to some missing
prereq commits.  I also had to backport many of the patches, since they
were not clean cherry picks.

Per comment 16, the bug did not start happening until the 4.13 kernel
was introduced to Artful.  We may want to look for a commit to revert
instead of Congs patch set, since it may not pass all the SRU
requirements.


I'll create a VM and see if I can reproduce the bug.  If I can, I'll bisect 
down the offending commit in 4.13.  

Just to confirm, this is only happening on the i386 server release?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1736390] Re: openvswitch: kernel oops destroying interfaces on i386

2018-01-03 Thread Steve Langasek

** Summary changed:

- openvswitch: kernel opps destroying interfaces on i386
+ openvswitch: kernel oops destroying interfaces on i386

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1736390

Title:
  openvswitch: kernel oops destroying interfaces on i386

Status in linux package in Ubuntu:
  Fix Committed
Status in openvswitch package in Ubuntu:
  Confirmed
Status in linux source package in Artful:
  In Progress
Status in openvswitch source package in Artful:
  Confirmed
Status in linux source package in Bionic:
  Fix Committed
Status in openvswitch source package in Bionic:
  Confirmed

Bug description:
  Reproducable on bionic using the autopkgtest's from openvswitch on
  i386:

  [   41.420568] BUG: unable to handle kernel NULL pointer dereference at   
(null)
  [   41.421000] IP: igmp_group_dropped+0x21/0x220
  [   41.421246] *pdpt = 1d62c001 *pde =  

  [   41.421659] Oops:  [#1] SMP
  [   41.421852] Modules linked in: veth openvswitch nf_conntrack_ipv6 
nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat 
nf_conntrack libcrc32c 9p fscache ppdev kvm_intel kvm 9pnet_virtio irqbypass 
input_leds joydev 9pnet parport_pc serio_raw parport i2c_piix4 qemu_fw_cfg 
mac_hid sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq psmouse 
virtio_blk virtio_net pata_acpi floppy
  [   41.423855] CPU: 0 PID: 5 Comm: kworker/u2:0 Tainted: GW   
4.13.0-18-generic #21-Ubuntu
  [   41.424355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1ubuntu1 04/01/2014
  [   41.424849] Workqueue: netns cleanup_net
  [   41.425071] task: db8fba80 task.stack: dba1
  [   41.425346] EIP: igmp_group_dropped+0x21/0x220
  [   41.425656] EFLAGS: 00010202 CPU: 0
  [   41.425864] EAX:  EBX: dd726360 ECX: dba11e6c EDX: 0002
  [   41.426335] ESI:  EDI: dd4db500 EBP: dba11dcc ESP: dba11d94
  [   41.426687]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  [   41.426990] CR0: 80050033 CR2:  CR3: 1e6d6d60 CR4: 06f0
  [   41.427340] Call Trace:
  [   41.427485]  ? __wake_up+0x36/0x40
  [   41.427680]  ip_mc_down+0x27/0x90
  [   41.427869]  inetdev_event+0x398/0x4e0
  [   41.428082]  ? skb_dequeue+0x5b/0x70
  [   41.428286]  ? wireless_nlevent_flush+0x4c/0x90
  [   41.428541]  notifier_call_chain+0x4e/0x70
  [   41.428772]  raw_notifier_call_chain+0x11/0x20
  [   41.429023]  call_netdevice_notifiers_info+0x2a/0x60
  [   41.429301]  dev_close_many+0x9d/0xe0
  [   41.429509]  rollback_registered_many+0xd7/0x380
  [   41.429768]  unregister_netdevice_many.part.102+0x10/0x80
  [   41.430075]  default_device_exit_batch+0x134/0x160
  [   41.430344]  ? do_wait_intr_irq+0x80/0x80
  [   41.430650]  ops_exit_list.isra.8+0x4d/0x60
  [   41.430886]  cleanup_net+0x18e/0x260
  [   41.431090]  process_one_work+0x1a0/0x390
  [   41.431317]  worker_thread+0x37/0x450
  [   41.431525]  kthread+0xf3/0x110
  [   41.431714]  ? process_one_work+0x390/0x390
  [   41.431941]  ? kthread_create_on_node+0x20/0x20
  [   41.432187]  ret_from_fork+0x19/0x24
  [   41.432382] Code: 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55 89 e5 57 
56 53 89 c3 83 ec 2c 8b 33 65 a1 14 00 00 00 89 45 f0 31 c0 80 7b 4b 00 <8b> 06 
8b b8 20 03 00 00 8b 43 04 0f 85 5e 01 00 00 3d e0 00 00
  [   41.433405] EIP: igmp_group_dropped+0x21/0x220 SS:ESP: 0068:dba11d94
  [   41.433750] CR2: 
  [   41.433961] ---[ end trace 595db54cab84070c ]---

  
  system then becomes unresponsive; no further interfaces can be created.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1736390/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

46 matches

Mail list logo