** Tags added: sts -- 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/1962485
Title: Kernel Crash [general protection fault: 0000 [#1] SMP NOPTI] Status in linux package in Ubuntu: Confirmed Bug description: Hi, I am running openstack xena release on ubuntu focal. Today my compute node running ubuntu focal crashed with due to kernel and dump has been generated in /var/crash/. Below is the kernel trace in crash dump. [455151.890114] general protection fault: 0000 [#1] SMP NOPTI [455151.890285] CPU: 43 PID: 83232 Comm: qemu-system-x86 Kdump: loaded Tainted: G OE 5.4.0-88-generic #99-Ubuntu [455151.890612] Hardware name: Dell Inc. PowerEdge R6525/XXXXX, BIOS 2.5.6 10/06/2021 [455151.890842] RIP: 0010:count_subheaders.part.0+0x26/0x60 [455151.890998] Code: 00 00 00 90 0f 1f 44 00 00 48 83 3f 00 74 4d 55 48 89 e5 41 55 45 31 ed 41 54 45 31 e4 53 48 89 fb 48 8b 7b 18 48 85 ff 74 23 <48> 83 3f 00 74 25 e8 cf ff ff ff 41 01 c5 48 83 c3 40 48 83 3b 00 [455151.891552] RSP: 0018:ffffa6b477487b88 EFLAGS: 00010202 [455151.891707] RAX: 0000000000000000 RBX: ffff9387c594f280 RCX: 0000000000000000 [455151.891918] RDX: 0000000000000060 RSI: ffff9390702a72c0 RDI: 0314a8c0f1b16f3e [455151.892130] RBP: ffffa6b477487ba0 R08: 0000000000000000 R09: ffffffffbc6ed7f0 [455151.892341] R10: ffffa6b477487cd0 R11: 0000000000000001 R12: 0000000000000000 [455151.892552] R13: 0000000000000000 R14: ffff9391e5684000 R15: ffffffffbd5f9880 [455151.892767] FS: 00007f69950c75c0(0000) GS:ffff9391feac0000(0000) knlGS:0000000000000000 [455151.893016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [455151.893207] CR2: 00007f61e9e45000 CR3: 0000017c54afa000 CR4: 0000000000340ee0 [455151.893434] Call Trace: [455151.893514] count_subheaders.part.0+0x31/0x60 [455151.893646] unregister_sysctl_table+0x30/0x90 [455151.893781] unregister_net_sysctl_table+0xe/0x10 [455151.893922] __devinet_sysctl_unregister.isra.0+0x2c/0x60 [455151.894082] devinet_sysctl_unregister+0x29/0x40 [455151.894220] inetdev_event+0x1e8/0x560 [455151.894334] ? skb_dequeue+0x5f/0x70 [455151.894444] notifier_call_chain+0x55/0x80 [455151.894565] ? notifier_call_chain+0x55/0x80 [455151.894693] raw_notifier_call_chain+0x16/0x20 [455151.894829] call_netdevice_notifiers_info+0x2e/0x60 [455151.894983] ? tun_show_owner+0x60/0x60 [455151.895098] rollback_registered_many+0x36e/0x520 [455151.895239] unregister_netdevice_queue+0x94/0x120 [455151.895383] __tun_detach+0x421/0x430 [455151.895495] tun_chr_close+0x3a/0x70 [455151.895605] __fput+0xcc/0x260 [455151.895698] ____fput+0xe/0x10 [455151.895792] task_work_run+0x8f/0xb0 [455151.895903] exit_to_usermode_loop+0x131/0x160 [455151.896036] do_syscall_64+0x163/0x190 [455151.896150] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [455151.896302] RIP: 0033:0x7f69965ba3fb [455151.896410] Code: 03 00 00 00 0f 05 48 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 f3 fb ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2f 44 89 c7 89 44 24 0c e8 31 fc ff ff 8b 44 [455151.896975] RSP: 002b:00007ffdff14b350 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [455151.897201] RAX: 0000000000000000 RBX: 0000557fe0875e50 RCX: 00007f69965ba3fb [455151.897412] RDX: 0000557fe0748f40 RSI: 0000000000000001 RDI: 000000000000002b [455151.897637] RBP: 0000557fe0887460 R08: 0000000000000000 R09: 0000000000000000 [455151.904390] R10: 0000000000000032 R11: 0000000000000293 R12: 0000557fe0875e50 [455151.911165] R13: 0000000000000001 R14: 0000557fe09efc10 R15: 0000557fe0747900 I didn't find any documented details on kernel 5.4 for this bug. I have uploaded the logs via ubuntu-bug linux command. # uname -a Linux kvm03-a1-r01-khi04.rapid.pk 5.4.0-88-generic #99-Ubuntu SMP Thu Sep 23 17:29:00 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux # cat /proc/version_signature Ubuntu 5.4.0-88.99-generic 5.4.140 I am using Dell R6525 with EPYC 7532 CPUs. Let me know if there is there are more information needed. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-88-generic 5.4.0-88.99 ProcVersionSignature: Ubuntu 5.4.0-88.99-generic 5.4.140 Uname: Linux 5.4.0-88-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Feb 28 17:38 seq crw-rw---- 1 root audio 116, 33 Feb 28 17:38 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.20 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: pass Date: Mon Feb 28 21:20:20 2022 InstallationDate: Installed on 2021-07-29 (214 days ago) InstallationMedia: Ubuntu-Server 20.04.2 LTS "Focal Fossa" - Release amd64 (20210201.2) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Dell Inc. PowerEdge R6525 PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-88-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro iommu=pt intel_iommu=on swapaccount=1 vga=normal nofb nomodeset video=vesafb:off i915.modeset=0 crashkernel=512M RelatedPackageVersions: linux-restricted-modules-5.4.0-88-generic N/A linux-backports-modules-5.4.0-88-generic N/A linux-firmware 1.187.19 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/06/2021 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.5.6 dmi.board.name: 0GK70M dmi.board.vendor: Dell Inc. dmi.board.version: A10 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.5.6:bd10/06/2021:svnDellInc.:pnPowerEdgeR6525:pvr:rvnDellInc.:rn0GK70M:rvrA10:cvnDellInc.:ct23:cvr: dmi.product.family: PowerEdge dmi.product.name: PowerEdge R6525 dmi.product.sku: SKU=NotProvided;ModelName=PowerEdge R6525 dmi.sys.vendor: Dell Inc. --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Feb 28 17:38 seq crw-rw---- 1 root audio 116, 33 Feb 28 17:38 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu27.20 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: pass DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2021-07-29 (214 days ago) InstallationMedia: Ubuntu-Server 20.04.2 LTS "Focal Fossa" - Release amd64 (20210201.2) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Dell Inc. PowerEdge R6525 Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-88-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro iommu=pt intel_iommu=on swapaccount=1 vga=normal nofb nomodeset video=vesafb:off i915.modeset=0 crashkernel=512M ProcVersionSignature: Ubuntu 5.4.0-88.99-generic 5.4.140 RelatedPackageVersions: linux-restricted-modules-5.4.0-88-generic N/A linux-backports-modules-5.4.0-88-generic N/A linux-firmware 1.187.19 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: focal uec-images Uname: Linux 5.4.0-88-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: True dmi.bios.date: 10/06/2021 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.5.6 dmi.board.name: 0GK70M dmi.board.vendor: Dell Inc. dmi.board.version: A10 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.5.6:bd10/06/2021:svnDellInc.:pnPowerEdgeR6525:pvr:rvnDellInc.:rn0GK70M:rvrA10:cvnDellInc.:ct23:cvr: dmi.product.family: PowerEdge dmi.product.name: PowerEdge R6525 dmi.product.sku: SKU=NotProvided;ModelName=PowerEdge R6525 dmi.sys.vendor: Dell Inc. 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