[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
--
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:
Fix Released
Status in linux source package in Artful:
Fix Released
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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
This bug was fixed in the package linux - 4.13.0-39.44 --- linux (4.13.0-39.44) artful; urgency=medium * linux: 4.13.0-39.44 -proposed tracker (LP: #1761456) * intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux- image-4.13.0-37-generic) (LP: #1759920) // CVE-2017-5715 (Spectre v2 Intel) // CVE-2017-5754 - x86/mm: Reinitialize TLB state on hotplug and resume * intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux- image-4.13.0-37-generic) (LP: #1759920) // CVE-2017-5715 (Spectre v2 Intel) - Revert "x86/mm: Only set IBPB when the new thread cannot ptrace current thread" - x86/speculation: Use Indirect Branch Prediction Barrier in context switch * DKMS driver builds fail with: Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel (LP: #1760876) - [Packaging] include the retpoline extractor in the headers * retpoline hints: primary infrastructure and initial hints (LP: #1758856) - [Packaging] retpoline-extract: flag *0xNNN(%reg) branches - x86/speculation, objtool: Annotate indirect calls/jumps for objtool - x86/speculation, objtool: Annotate indirect calls/jumps for objtool on 32bit - x86/paravirt, objtool: Annotate indirect calls - [Packaging] retpoline -- add safe usage hint support - [Packaging] retpoline-check -- only report additions - [Packaging] retpoline -- widen indirect call/jmp detection - [Packaging] retpoline -- elide %rip relative indirections - [Packaging] retpoline -- clear hint information from packages - KVM: x86: Make indirect calls in emulator speculation safe - KVM: VMX: Make indirect call speculation safe - x86/boot, objtool: Annotate indirect jump in secondary_startup_64() - SAUCE: early/late -- annotate indirect calls in early/late initialisation code - SAUCE: vga_set_mode -- avoid jump tables - [Config] retpoline -- switch to new format - [Packaging] retpoline hints -- handle missing files when RETPOLINE not enabled - [Packaging] final-checks -- remove check for empty retpoline files * retpoline: ignore %cs:0xNNN constant indirections (LP: #1752655) - [Packaging] retpoline -- elide %cs:0x constants on i386 * zfs system process hung on container stop/delete (LP: #1754584) - SAUCE: Fix non-prefaulted page deadlock (LP: #1754584) * zfs-linux 0.6.5.11-1ubuntu5 ADT test failure with linux 4.15.0-1.2 (LP: #1737761) - SAUCE: (noup) Update zfs to 0.6.5.11-1ubuntu3.2 * AT_BASE_PLATFORM in AUXV is absent on kernels available on Ubuntu 17.10 (LP: #1759312) - powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features * btrfs and tar sparse truncate archives (LP: #1757565) - Btrfs: move definition of the function btrfs_find_new_delalloc_bytes - Btrfs: fix reported number of inode blocks after buffered append writes * efifb broken on ThunderX-based Gigabyte nodes (LP: #1758375) - drivers/fbdev/efifb: Allow BAR to be moved instead of claiming it * Intel i40e PF reset due to incorrect MDD detection (continues...) (LP: #1723127) - i40e/i40evf: Account for frags split over multiple descriptors in check linearize * Fix an issue that when system in S3, USB keyboard can't wake up the system. (LP: #1759511) - ACPI / PM: Allow deeper wakeup power states with no _SxD nor _SxW * [8086:3e92] display becomes blank after S3 (LP: #1759188) - drm/i915: Apply Display WA #1183 on skl, kbl, and cfl * add audio kernel patches for Raven (LP: #1758364) - ALSA: hda: Add Raven PCI ID - ALSA: hda/realtek - Fix ALC700 family no sound issue * Cpu utilization showing system time for kvm guests (performance) (sysstat) (LP: #1755979) - KVM: PPC: Book3S HV: Fix guest time accounting with VIRT_CPU_ACCOUNTING_GEN * Kernel panic on a nfsroot system (LP: #1734327) - Revert "UBUNTU: SAUCE: LSM stacking: add stacking support to apparmor network hooks" - Revert "UBUNTU: SAUCE: LSM stacking: LSM: Infrastructure management of the remaining blobs" * can't record sound via front headset port on the Dell Precision 3630 (LP: #1759088) - ALSA: hda/realtek - Fix Dell headset Mic can't record * speaker can't output sound anymore after system resumes from S3 on a lenovo machine with alc257 (LP: #1758829) - ALSA: hda/realtek - Fix speaker no sound after system resume * hda driver initialization takes too much time on the machine with coffeelake audio controller [8086:a348] (LP: #1758800) - ALSA: hda - Force polling mode on CFL for fixing codec communication * Let headset-mode initialization be called on Dell Precision 3930 (LP: #1757584) - ALSA: hda/realtek - Add headset mode support for Dell laptop * ubuntu_zram_smoke test will cause soft lockup on Artful ThunderX ARM64 (LP: #1755073) - SAUCE: crypto: thunderx_zip: Fix
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
** Changed in: linux (Ubuntu Artful)
Status: Fix Committed => Confirmed
--
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:
Fix Committed
Status in linux source package in Artful:
Confirmed
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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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
--
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:
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
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
artful' to 'verification-done-artful'. If the problem still exists,
change the tag 'verification-needed-artful' to 'verification-failed-
artful'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: verification-needed-artful
--
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:
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:
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
** Changed in: linux (Ubuntu Artful)
Status: In Progress => Fix Committed
--
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:
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
4,1173,52374070,-; sk_destruct+0x20/0x30
4,1174,52374095,-; __sk_free+0x82/0xa0
4,1175,52374120,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
Since 18.04 seems to give up LSM stacking patchset, safest choice (if
acceptable) would be to completely revert LSM stacking patchset for
17.10 as well.
--
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:
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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
I'm wondering if we want to see what type of feedback is first received
from upstream.
--
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:
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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
No plan to land upstream yet. Casey's upstream proposal
(
http://kernsec.org/pipermail/linux-security-module-archive/2017-December/004728.html
) is stalling.
Please carry my patch as UBUNTU: SAUCE: patch.
--
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:
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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
That's good news, thanks for testing, Sergey.
Tetsuo, do you know if your patch is going to land upstream?
--
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:
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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
4.13.0-32-generic #35~lp1734327 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:
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
I built a test kernel with the patch from Tetsuo. The test kernel can be
downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1734327
Can you test this kernel and see if it resolves this bug?
Note, to test this kernel, you need to install both the linux-image and
linux-image-extra .deb packages.
Thanks in advance!
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Committed
--
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:
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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
SRU request submitted:
https://lists.ubuntu.com/archives/kernel-team/2017-December/088715.html
--
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:
== 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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
** Description changed:
+ == 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
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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
4.13.0-17-generic #20~lp1734327JustCommit4ae2508Reverted 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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
I built one more test kernel. This one only has commit 4ae2508 reverted. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1734327/revert-test Can you test that kernel and report back if it has the bug or not? -- 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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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
Two commits that stick out in the git log are: 4ae2508 UBUNTU: SAUCE: LSM stacking: add stacking support to apparmor network hooks ac8f82a UBUNTU: SAUCE: LSM stacking: LSM: Infrastructure management of the remaining blobs I built a test kernel with these two commits reverted. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1734327/revert-test Can you test that kernel and report back if it has the bug or not? -- 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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
4.13.0-13-generic #14~lp1734327Commit8d9d2235a82 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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
I built the next test kernel, up to the following commit: 8d9d2235a82ea41e65eff607005ea4f334e2e503 The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1734327 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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
I started a kernel bisect between 4.13.0-12 and 4.13.0-14. The kernel bisect will require testing of about 7-10 test kernels. I built the first test kernel, up to the following commit: 1c8d41925cff57972056048511a451040fa3b790 The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1734327 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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
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
Can you next try 4.13.0-14: https://launchpad.net/ubuntu/+source/linux/4.13.0-14.15/+build/13541235 -- 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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
4.13.0-10 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,-; ? lock_timer_base+0x81/0xa0
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
Thanks again for testing. It's sounding like this was introduced by a SAUCE patch in the 4.13 kernel. Can you next test the first 4.13 kernel that came after 4.12.0-13: 4.13.0-10: https://launchpad.net/~canonical-kernel- team/+archive/ubuntu/unstable/+build/13358561 -- 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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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 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
** Tags removed: needs-bisect ** Tags added: performing-bisect -- 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
Thanks for testing, Sergey. That further indicates that the regression is due to a SAUCE patch. We can perform a bisect to identify the exact commit. We need to narrow down the kernel version that introduced the bug further. Can you next test the following two kernels: 4.11.0-5: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/12644289 4.12.0-13: https://launchpad.net/ubuntu/+source/linux/4.12.0-13.14/+build/13325106 -- 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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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
I wonder if this bug could be caused by a SAUCE patch, which is why it doesn't happen with the upstream kernels. Can you see if this bug happens in either the Zesty kernel or Artful -proposed Zesty: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/13757667 Artful -proposed: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/13757328 With these kernels, you need to install both the linux-image and linux- image-extra .deb packages. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/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
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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
Can you give 4.13-rc1 a try: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13-rc1/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
Unable to reproduce with both 4.13.0 and 4.14-rc1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/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
I'd like to perform a reverse bisect to figure out which commit upstream fixes this regression. It would be very helpful to know the last kernel that had this issue and the first kernel that did not. Can you test the following kernels and report back? We are looking for the earliest kernel version that does not have this bug: v4.13 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13/ v4.14-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc1/ Thanks in advance! ** Also affects: linux (Ubuntu Artful) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Artful) Importance: Undecided => High ** Changed in: linux (Ubuntu Artful) Status: New => In Progress ** Changed in: linux (Ubuntu) Status: Confirmed => In Progress ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) ** Changed in: linux (Ubuntu Artful) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) -- 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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
Unable to reproduce using upstream kernel 4.14.0-041400-generic. ** Tags added: kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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: 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] Re: Kernel panic on a nfsroot system
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.14 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: kernel-da-key needs-bisect -- 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,-;
[Kernel-packages] [Bug 1734327] Re: Kernel panic on a nfsroot system
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,-;
