Public bug reported: In the curtin integration tests, we have seen this kernel panic in the last of our three daily runs (unfortunately we don't have history before that):
[ 94.443649] cloud-init[1011]: Running command ['blkid', '-o', 'full'] with allowed return codes [0] (capture=True) [ 244.975645] INFO: task blkid:4126 blocked for more than 120 seconds. [ 244.976904] Tainted: P O 5.3.0-55-generic #49-Ubuntu [ 244.977997] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 244.979367] blkid D 0 4126 2165 0x00004000 [ 244.980331] Call Trace: [ 244.980810] __schedule+0x2b9/0x6c0 [ 244.981384] ? __switch_to_asm+0x40/0x70 [ 244.982038] ? __switch_to_asm+0x40/0x70 [ 244.982766] schedule+0x42/0xb0 [ 244.983284] schedule_timeout+0x203/0x2f0 [ 244.983977] wait_for_completion+0xb1/0x120 [ 244.984696] ? wake_up_q+0x70/0x70 [ 244.985272] __floppy_read_block_0+0x140/0x190 [floppy] [ 244.986115] ? floppy_cmos_show+0x30/0x30 [floppy] [ 244.986951] floppy_revalidate+0xfc/0x240 [floppy] [ 244.987773] check_disk_change+0x62/0x70 [ 244.988438] floppy_open+0x28e/0x360 [floppy] [ 244.989154] ? disk_block_events+0x5c/0x80 [ 244.989823] __blkdev_get+0xe1/0x550 [ 244.990443] blkdev_get+0x3d/0x140 [ 244.991026] ? blkdev_get_by_dev+0x50/0x50 [ 244.991711] blkdev_open+0x97/0xf0 [ 244.992305] do_dentry_open+0x143/0x3a0 [ 244.992934] vfs_open+0x2d/0x30 [ 244.993485] do_last+0x194/0x8f0 [ 244.994014] path_openat+0x8d/0x270 [ 244.994632] do_filp_open+0x91/0x100 [ 244.995231] ? __alloc_fd+0x46/0x150 [ 244.995847] do_sys_open+0x17e/0x290 [ 244.996457] __x64_sys_openat+0x20/0x30 [ 244.997091] do_syscall_64+0x5a/0x130 [ 244.997691] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 244.998552] RIP: 0033:0x7f9eb1c71fdb [ 244.999162] Code: Bad RIP value. [ 244.999708] RSP: 002b:00007ffffb8305e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 245.000985] RAX: ffffffffffffffda RBX: 000055e7daa0c500 RCX: 00007f9eb1c71fdb [ 245.002139] RDX: 0000000000080000 RSI: 000055e7daa0d680 RDI: 00000000ffffff9c [ 245.003332] RBP: 000055e7daa0d680 R08: 0000000000000000 R09: 00007f9eb1d4bc10 [ 245.004486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 [ 245.005660] R13: 00007f9eb1da83c4 R14: 00000000dededefa R15: 0000000000000000 [ 245.006859] NMI backtrace for cpu 1 [ 245.007430] CPU: 1 PID: 25 Comm: khungtaskd Tainted: P O 5.3.0-55-generic #49-Ubuntu [ 245.008870] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 245.010326] Call Trace: [ 245.010794] dump_stack+0x6d/0x9a [ 245.011344] ? lapic_can_unplug_cpu.cold+0x40/0x40 [ 245.012151] nmi_cpu_backtrace.cold+0x14/0x53 [ 245.012856] nmi_trigger_cpumask_backtrace+0xe8/0xea [ 245.013657] arch_trigger_cpumask_backtrace+0x19/0x20 [ 245.014552] watchdog+0x32e/0x390 [ 245.015111] kthread+0x104/0x140 [ 245.015638] ? hungtask_pm_notify+0x40/0x40 [ 245.016316] ? kthread_park+0x80/0x80 [ 245.016911] ret_from_fork+0x35/0x40 [ 245.017527] Sending NMI from CPU 1 to CPUs 0: [ 245.018311] NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 [ 245.019262] Kernel panic - not syncing: hung_task: blocked tasks [ 245.020616] CPU: 1 PID: 25 Comm: khungtaskd Tainted: P O 5.3.0-55-generic #49-Ubuntu [ 245.022109] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 245.023603] Call Trace: [ 245.024021] dump_stack+0x6d/0x9a [ 245.024554] panic+0x101/0x2d7 [ 245.025070] watchdog+0x33a/0x390 [ 245.025616] kthread+0x104/0x140 [ 245.026135] ? hungtask_pm_notify+0x40/0x40 [ 245.026851] ? kthread_park+0x80/0x80 [ 245.027470] ret_from_fork+0x35/0x40 [ 245.028131] Kernel Offset: 0x20e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) ** Affects: linux-meta (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-meta in Ubuntu. https://bugs.launchpad.net/bugs/1882818 Title: kernel panic when running `blkid -o full` on eoan Status in linux-meta package in Ubuntu: New Bug description: In the curtin integration tests, we have seen this kernel panic in the last of our three daily runs (unfortunately we don't have history before that): [ 94.443649] cloud-init[1011]: Running command ['blkid', '-o', 'full'] with allowed return codes [0] (capture=True) [ 244.975645] INFO: task blkid:4126 blocked for more than 120 seconds. [ 244.976904] Tainted: P O 5.3.0-55-generic #49-Ubuntu [ 244.977997] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 244.979367] blkid D 0 4126 2165 0x00004000 [ 244.980331] Call Trace: [ 244.980810] __schedule+0x2b9/0x6c0 [ 244.981384] ? __switch_to_asm+0x40/0x70 [ 244.982038] ? __switch_to_asm+0x40/0x70 [ 244.982766] schedule+0x42/0xb0 [ 244.983284] schedule_timeout+0x203/0x2f0 [ 244.983977] wait_for_completion+0xb1/0x120 [ 244.984696] ? wake_up_q+0x70/0x70 [ 244.985272] __floppy_read_block_0+0x140/0x190 [floppy] [ 244.986115] ? floppy_cmos_show+0x30/0x30 [floppy] [ 244.986951] floppy_revalidate+0xfc/0x240 [floppy] [ 244.987773] check_disk_change+0x62/0x70 [ 244.988438] floppy_open+0x28e/0x360 [floppy] [ 244.989154] ? disk_block_events+0x5c/0x80 [ 244.989823] __blkdev_get+0xe1/0x550 [ 244.990443] blkdev_get+0x3d/0x140 [ 244.991026] ? blkdev_get_by_dev+0x50/0x50 [ 244.991711] blkdev_open+0x97/0xf0 [ 244.992305] do_dentry_open+0x143/0x3a0 [ 244.992934] vfs_open+0x2d/0x30 [ 244.993485] do_last+0x194/0x8f0 [ 244.994014] path_openat+0x8d/0x270 [ 244.994632] do_filp_open+0x91/0x100 [ 244.995231] ? __alloc_fd+0x46/0x150 [ 244.995847] do_sys_open+0x17e/0x290 [ 244.996457] __x64_sys_openat+0x20/0x30 [ 244.997091] do_syscall_64+0x5a/0x130 [ 244.997691] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 244.998552] RIP: 0033:0x7f9eb1c71fdb [ 244.999162] Code: Bad RIP value. [ 244.999708] RSP: 002b:00007ffffb8305e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 245.000985] RAX: ffffffffffffffda RBX: 000055e7daa0c500 RCX: 00007f9eb1c71fdb [ 245.002139] RDX: 0000000000080000 RSI: 000055e7daa0d680 RDI: 00000000ffffff9c [ 245.003332] RBP: 000055e7daa0d680 R08: 0000000000000000 R09: 00007f9eb1d4bc10 [ 245.004486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 [ 245.005660] R13: 00007f9eb1da83c4 R14: 00000000dededefa R15: 0000000000000000 [ 245.006859] NMI backtrace for cpu 1 [ 245.007430] CPU: 1 PID: 25 Comm: khungtaskd Tainted: P O 5.3.0-55-generic #49-Ubuntu [ 245.008870] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 245.010326] Call Trace: [ 245.010794] dump_stack+0x6d/0x9a [ 245.011344] ? lapic_can_unplug_cpu.cold+0x40/0x40 [ 245.012151] nmi_cpu_backtrace.cold+0x14/0x53 [ 245.012856] nmi_trigger_cpumask_backtrace+0xe8/0xea [ 245.013657] arch_trigger_cpumask_backtrace+0x19/0x20 [ 245.014552] watchdog+0x32e/0x390 [ 245.015111] kthread+0x104/0x140 [ 245.015638] ? hungtask_pm_notify+0x40/0x40 [ 245.016316] ? kthread_park+0x80/0x80 [ 245.016911] ret_from_fork+0x35/0x40 [ 245.017527] Sending NMI from CPU 1 to CPUs 0: [ 245.018311] NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 [ 245.019262] Kernel panic - not syncing: hung_task: blocked tasks [ 245.020616] CPU: 1 PID: 25 Comm: khungtaskd Tainted: P O 5.3.0-55-generic #49-Ubuntu [ 245.022109] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 245.023603] Call Trace: [ 245.024021] dump_stack+0x6d/0x9a [ 245.024554] panic+0x101/0x2d7 [ 245.025070] watchdog+0x33a/0x390 [ 245.025616] kthread+0x104/0x140 [ 245.026135] ? hungtask_pm_notify+0x40/0x40 [ 245.026851] ? kthread_park+0x80/0x80 [ 245.027470] ret_from_fork+0x35/0x40 [ 245.028131] Kernel Offset: 0x20e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/1882818/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp