[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

Fix verified on linux-image-4.13.0-39-generic/artful-proposed.

Thank you for the great work!

** Tags removed: verification-needed-artful
** Tags added: verification-done-artful

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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Artful:
  Fix Committed

Bug description:
  == SRU Justification ==
  The following commit introduced a regression identified in bug 1734327:
  ac8f82a0b6d9 ("UBUNTU: SAUCE: LSM stacking: LSM: Infrastructure management of 
the remaining blobs")

  The regression causes a kernel panic to occur after multiple TCP connection 
  creations/closures to the localhost.  The bug was found using STAF RPC calls, 
  but is easily reproducible with SSH.

  A revert of commit ac8f82a0b6d9 is needed to resolve this bug.  However, 
commit 4ae2508f0bed
  also needs to be reverted because it depend on commit ac8f82a0b6d9.

  == Fix ==
  Revert 4ae2508f0bed ("UBUNTU: SAUCE: LSM stacking: add stacking support to 
apparmor network hooks")
  Revert ac8f82a0b6d9 ("UBUNTU: SAUCE: LSM stacking: LSM: Infrastructure 
management of the remaining blobs")

  == Test Case ==
  A test kernel was built with these two commits reverted and tested by the 
original bug reporter.
  The bug reporter states the test kernel resolved the bug.



  
  == Original Bug Description ==
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-32-generic #35~lp1734327 is not affected.

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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

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

Bug description:
  == SRU Justification ==
  The following commit introduced a regression identified in bug 1734327:
  ac8f82a0b6d9 ("UBUNTU: SAUCE: LSM stacking: LSM: Infrastructure management of 
the remaining blobs")

  The regression causes a kernel panic to occur after multiple TCP connection 
  creations/closures to the localhost.  The bug was found using STAF RPC calls, 
  but is easily reproducible with SSH.

  A revert of commit ac8f82a0b6d9 is needed to resolve this bug.  However, 
commit 4ae2508f0bed
  also needs to be reverted because it depend on commit ac8f82a0b6d9.

  == Fix ==
  Revert 4ae2508f0bed ("UBUNTU: SAUCE: LSM stacking: add stacking support to 
apparmor network hooks")
  Revert ac8f82a0b6d9 ("UBUNTU: SAUCE: LSM stacking: LSM: Infrastructure 
management of the remaining blobs")

  == Test Case ==
  A test kernel was built with these two commits reverted and tested by the 
original bug reporter.
  The bug reporter states the test kernel resolved the bug.



  
  == Original Bug Description ==
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-17-generic #20~lp1734327JustCommit4ae2508Reverted is affected.

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-17-generic #20~lp1734327 kernel with commits reverted is not
affected.

Thanks for all your effort.

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-13-generic #14~lp1734327Commit8d9d2235a82 is affected.

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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; 

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-13-generic #14~lp1734327Commit1c8d41925cf is not affected.

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

Tried 4.13.0-12 from https://launchpad.net/~canonical-kernel-
team/+archive/ubuntu/ppa/+build/13498518, it's not affected.

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-14 is affected.

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; ? lock_timer_base+0x81/0xa0
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-10 is not affected.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; ? lock_timer_base+0x81/0xa0
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

Both 4.11.0-5 and 4.12.0-13 are not affected.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; ? 

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13.0-18 is affected.
4.10.0-41 is not affected.

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; ? 

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

4.13-rc1 is not affected either.

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; ? lock_timer_base+0x81/0xa0
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

Unable to reproduce with both 4.13.0 and 4.14-rc1

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Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Artful:
  In Progress

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; ? 

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

Unable to reproduce using upstream kernel 4.14.0-041400-generic.

** Tags added: kernel-fixed-upstream

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  

[Kernel-packages] [Bug 1734327] ProcModules.txt

[Sergey Kozlov]

apport information

** Attachment added: "ProcModules.txt"
   
https://bugs.launchpad.net/bugs/1734327/+attachment/5014087/+files/ProcModules.txt

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Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; 

[Kernel-packages] [Bug 1734327] CurrentDmesg.txt

[Sergey Kozlov]

apport information

** Attachment added: "CurrentDmesg.txt"
   
https://bugs.launchpad.net/bugs/1734327/+attachment/5014080/+files/CurrentDmesg.txt

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; 

[Kernel-packages] [Bug 1734327] ProcInterrupts.txt

[Sergey Kozlov]

apport information

** Attachment added: "ProcInterrupts.txt"
   
https://bugs.launchpad.net/bugs/1734327/+attachment/5014086/+files/ProcInterrupts.txt

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; 

[Kernel-packages] [Bug 1734327] ProcEnviron.txt

[Sergey Kozlov]

apport information

** Attachment added: "ProcEnviron.txt"
   
https://bugs.launchpad.net/bugs/1734327/+attachment/5014085/+files/ProcEnviron.txt

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; 

[Kernel-packages] [Bug 1734327] ProcCpuinfoMinimal.txt

[Sergey Kozlov]

apport information

** Attachment added: "ProcCpuinfoMinimal.txt"
   
https://bugs.launchpad.net/bugs/1734327/+attachment/5014084/+files/ProcCpuinfoMinimal.txt

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; 

[Kernel-packages] [Bug 1734327] Lspci.txt

[Sergey Kozlov]

apport information

** Attachment added: "Lspci.txt"
   https://bugs.launchpad.net/bugs/1734327/+attachment/5014082/+files/Lspci.txt

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  

[Kernel-packages] [Bug 1734327] JournalErrors.txt

[Sergey Kozlov]

apport information

** Attachment added: "JournalErrors.txt"
   
https://bugs.launchpad.net/bugs/1734327/+attachment/5014081/+files/JournalErrors.txt

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; 

[Kernel-packages] [Bug 1734327] Lsusb.txt

[Sergey Kozlov]

apport information

** Attachment added: "Lsusb.txt"
   https://bugs.launchpad.net/bugs/1734327/+attachment/5014083/+files/Lsusb.txt

-- 
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/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  

[Kernel-packages] [Bug 1734327] WifiSyslog.txt

[Sergey Kozlov]

apport information

** Attachment added: "WifiSyslog.txt"
   
https://bugs.launchpad.net/bugs/1734327/+attachment/5014089/+files/WifiSyslog.txt

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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; 

[Kernel-packages] [Bug 1734327] UdevDb.txt

[Sergey Kozlov]

apport information

** Attachment added: "UdevDb.txt"
   https://bugs.launchpad.net/bugs/1734327/+attachment/5014088/+files/UdevDb.txt

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https://bugs.launchpad.net/bugs/1734327

Title:
  Kernel panic on a nfsroot system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.

  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64

  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash

  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  

[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system

[Sergey Kozlov]

apport information

** Tags added: apport-collected

** Description changed:

  Summary:
  Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
  The bug was found using STAF RPC calls, but is easily reproducible with SSH.
  The bug doesn't appear on an identical virtual machine booting from the disk.
  The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
  The bug is reproducible using an older 4.13.0-16-generic kernel
  Reproducible on multiple hardware types.
  Unable to create a kernel memory dump due to makedumpfile errors.
  apport-bug save attached.
  
  NFSRoot boot options:
  vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw
  
  Software:
  OS: Ubuntu 17.10
  Kernel: 4.13.0-17-generic x86_64
  
  Reproduction steps:
  1. Boot a system from a nfsroot
  2. Configure password-less localhost ssh access
  3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
  4. Wait for system to crash
  
  Trace:
  4,1151,52372730,-;general protection fault:  [#1] SMP
  4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
  4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
  4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
  4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
  4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
  4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
  4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
  4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
  4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
  4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
  4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
  4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
  4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
  4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
  4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
  4,1167,52373878,-;DR0:  DR1:  DR2: 

  4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
  4,1169,52373968,-;Call Trace:
  4,1170,52373987,-; 
  4,1171,52374009,-; security_sk_free+0x3e/0x50
  4,1172,52374042,-; __sk_destruct+0x108/0x190
  4,1173,52374070,-; sk_destruct+0x20/0x30
  4,1174,52374095,-; __sk_free+0x82/0xa0
  4,1175,52374120,-; sk_free+0x19/0x20
  4,1176,52374144,-; sock_put+0x14/0x20
  4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
  4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
  4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
  4,1180,52374254,-; ip_rcv_finish+0x120/0x410
  4,1181,52374281,-; ip_rcv+0x28c/0x3a0
  4,1182,52374305,-; ? update_load_avg+0x46d/0x590
  4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
  4,1184,52374369,-; __netif_receive_skb+0x18/0x60
  4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
  4,1186,52374428,-; process_backlog+0x89/0x140
  4,1187,52374457,-; net_rx_action+0x13b/0x380
  4,1188,52374485,-; __do_softirq+0xde/0x2a5
  4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
  4,1190,52377188,-; 
  4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
  4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
  4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
  4,1194,52382442,-; ip_finish_output+0x190/0x250
  4,1195,52383658,-; ? ip_finish_output+0x190/0x250
  4,1196,52384833,-; ip_output+0x70/0xe0
  4,1197,52385959,-; ? lock_timer_base+0x81/0xa0
  4,1198,52387043,-; ip_local_out+0x35/0x40
  4,1199,52388078,-; ip_queue_xmit+0x160/0x3e0
  4,1200,52389068,-; ? __alloc_skb+0x87/0x1e0
  4,1201,52390019,-; tcp_transmit_skb+0x538/0x9e0
  4,1202,52390944,-; tcp_send_ack.part.35+0xbd/0x130
  4,1203,52391849,-; 

[Kernel-packages] [Bug 1734327] [NEW] Kernel panic on a nfsroot system

[Sergey Kozlov]

Public bug reported:

Summary:
Kernel panic occurs after multiple TCP connection creations/closures to the 
localhost.
The bug was found using STAF RPC calls, but is easily reproducible with SSH.
The bug doesn't appear on an identical virtual machine booting from the disk.
The bug is not reproducible on a similarly-prepared Ubuntu 16.04 machine.
The bug is reproducible using an older 4.13.0-16-generic kernel
Reproducible on multiple hardware types.
Unable to create a kernel memory dump due to makedumpfile errors.
apport-bug save attached.

NFSRoot boot options:
vmlinuz initrd=initrd.img boot=nfs root=/dev/nfs 
nfsroot=190.0.0.254:/diskless/host/u1616/Ubuntu/17.10 intel_iommu=on 
net.ifnames=0 biosdevname=0 apparmor=0 ip=:eth0:dhcp 
blacklist=i40e,ixgbe,fm10k crashkernel=384M-:768M rw

Software:
OS: Ubuntu 17.10
Kernel: 4.13.0-17-generic x86_64

Reproduction steps:
1. Boot a system from a nfsroot
2. Configure password-less localhost ssh access
3. Run a loop: `while true; do ssh localhost 'uname -a'; done`
4. Wait for system to crash

Trace:
4,1151,52372730,-;general protection fault:  [#1] SMP
4,1152,52372771,-;Modules linked in: arc4 md4 rpcsec_gss_krb5 nls_utf8 
auth_rpcgss cifs nfsv4 ccm ipmi_ssif intel_rapl sb_edac x86_pkg_temp_thermal 
intel_powerclamp coretemp intel_cstate mei_me input_leds joydev intel_rapl_perf 
mei kvm_intel lpc_ich ioatdma kvm irqbypass ipmi_si ipmi_devintf 
ipmi_msghandler shpchp acpi_pad acpi_power_meter mac_hid ib_iser rdma_cm iw_cm 
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables 
x_tables autofs4 nfsv3 nfs_acl nfs lockd grace sunrpc fscache raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic 
usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc ast ttm aesni_intel igb 
drm_kms_helper aes_x86_64 crypto_simd syscopyarea glue_helper
4,1153,52373251,c; sysfillrect dca cryptd sysimgblt i2c_algo_bit fb_sys_fops 
ahci ptp drm libahci pps_core wmi
4,1154,52373322,-;CPU: 11 PID: 1848 Comm: STAFProc Not tainted 
4.13.0-17-generic #20-Ubuntu
4,1155,52373371,-;Hardware name: Supermicro Super Server/X10SRD-F, BIOS 2.0 
12/17/2015
4,1156,52373418,-;task: 9d09267f5d00 task.stack: afddc3a7
4,1157,52373461,-;RIP: 0010:kfree+0x53/0x160
4,1158,52373486,-;RSP: 0018:9d092ecc3bc8 EFLAGS: 00010207
4,1159,52373521,-;RAX:  RBX: 241c89490001 RCX: 
0004
4,1160,52373566,-;RDX: 32d49081cc08 RSI: 00010080 RDI: 
62fac000
4,1161,52373611,-;RBP: 9d092ecc3be0 R08: 0001f4c0 R09: 
943bb839
4,1162,52373656,-;R10: 00904c789100 R11:  R12: 
9d09267ef000
4,1163,52373701,-;R13: 93fa155e R14: 9d09267ef000 R15: 
9d09267ef000
4,1164,52373746,-;FS:  7f3a53313700() GS:9d092ecc() 
knlGS:
4,1165,52373797,-;CS:  0010 DS:  ES:  CR0: 80050033
4,1166,52373834,-;CR2: 7fd5c9ffa780 CR3: 0004666d7000 CR4: 
003406e0
4,1167,52373878,-;DR0:  DR1:  DR2: 

4,1168,52373923,-;DR3:  DR6: fffe0ff0 DR7: 
0400
4,1169,52373968,-;Call Trace:
4,1170,52373987,-; 
4,1171,52374009,-; security_sk_free+0x3e/0x50
4,1172,52374042,-; __sk_destruct+0x108/0x190
4,1173,52374070,-; sk_destruct+0x20/0x30
4,1174,52374095,-; __sk_free+0x82/0xa0
4,1175,52374120,-; sk_free+0x19/0x20
4,1176,52374144,-; sock_put+0x14/0x20
4,1177,52374168,-; tcp_v4_rcv+0x94d/0x9d0
4,1178,52374195,-; ip_local_deliver_finish+0x5c/0x1f0
4,1179,52374226,-; ip_local_deliver+0x6f/0xe0
4,1180,52374254,-; ip_rcv_finish+0x120/0x410
4,1181,52374281,-; ip_rcv+0x28c/0x3a0
4,1182,52374305,-; ? update_load_avg+0x46d/0x590
4,1183,52374335,-; __netif_receive_skb_core+0x39a/0xaa0
4,1184,52374369,-; __netif_receive_skb+0x18/0x60
4,1185,52374398,-; ? __netif_receive_skb+0x18/0x60
4,1186,52374428,-; process_backlog+0x89/0x140
4,1187,52374457,-; net_rx_action+0x13b/0x380
4,1188,52374485,-; __do_softirq+0xde/0x2a5
4,1189,52375837,-; do_softirq_own_stack+0x1c/0x30
4,1190,52377188,-; 
4,1191,52378538,-; do_softirq.part.17+0x4e/0x50
4,1192,52379869,-; __local_bh_enable_ip+0x5a/0x60
4,1193,52381174,-; ip_finish_output2+0x172/0x3a0
4,1194,52382442,-; ip_finish_output+0x190/0x250
4,1195,52383658,-; ? ip_finish_output+0x190/0x250
4,1196,52384833,-; ip_output+0x70/0xe0
4,1197,52385959,-; ? lock_timer_base+0x81/0xa0
4,1198,52387043,-; ip_local_out+0x35/0x40
4,1199,52388078,-; ip_queue_xmit+0x160/0x3e0
4,1200,52389068,-; ? __alloc_skb+0x87/0x1e0
4,1201,52390019,-; tcp_transmit_skb+0x538/0x9e0
4,1202,52390944,-; tcp_send_ack.part.35+0xbd/0x130
4,1203,52391849,-; tcp_send_ack+0x16/0x20
4,1204,52392729,-; tcp_cleanup_rbuf+0x67/0x100
4,1205,52393600,-; tcp_recvmsg+0x572/0xb60
4,1206,52394464,-; inet_recvmsg+0x4b/0xc0
4,1207,52395307,-; sock_recvmsg+0x3d/0x50
4,1208,52396135,-;