[Bug 1813881] Re: Kworker process stuck in uninterruptible sleep
*** This bug is a duplicate of bug 1802021 *** https://bugs.launchpad.net/bugs/1802021 ** This bug has been marked a duplicate of bug 1802021 [Hyper-V] srcu: Lock srcu_data structure in srcu_gp_start() -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813881 Title: Kworker process stuck in uninterruptible sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1813881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1813881] Re: Kworker process stuck in uninterruptible sleep
This bug affects many production instances. We depend on this backport as upgrading to another distro is not possible at this point. Do we know if this is a regression? Maybe a downgrade will solve the issue for now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813881 Title: Kworker process stuck in uninterruptible sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1813881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1813881] Re: Kworker process stuck in uninterruptible sleep
** Package changed: linux (Ubuntu) => linux-hwe (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813881 Title: Kworker process stuck in uninterruptible sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1813881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1813881] Re: Kworker process stuck in uninterruptible sleep
I am unable to run that command since it's missing from the system and any install option is compromised because of the bug (install times out). ** Description changed: 2019-01-22T09:03:34.968028+00:00 localhost kernel: [80233.315906] INFO: task kworker/u30:3:5705 blocked for more than 120 seconds. 2019-01-22T09:03:34.968049+00:00 localhost kernel: [80233.321444] Tainted: P O 4.15.0-43-generic #46~16.04.1-Ubuntu 2019-01-22T09:03:34.980485+00:00 localhost kernel: [80233.327648] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 2019-01-22T09:03:34.980519+00:00 localhost kernel: [80233.333902] kworker/u30:3 D0 5705 2 0x8000 2019-01-22T09:03:34.980521+00:00 localhost kernel: [80233.333909] Workqueue: events_unbound fsnotify_mark_destroy_workfn 2019-01-22T09:03:34.980522+00:00 localhost kernel: [80233.333910] Call Trace: 2019-01-22T09:03:34.980526+00:00 localhost kernel: [80233.333914] __schedule+0x3d6/0x8b0 2019-01-22T09:03:34.980527+00:00 localhost kernel: [80233.333918] schedule+0x36/0x80 2019-01-22T09:03:34.980528+00:00 localhost kernel: [80233.333920] schedule_timeout+0x1db/0x370 2019-01-22T09:03:34.980530+00:00 localhost kernel: [80233.333927] ? __enqueue_entity+0x5c/0x60 2019-01-22T09:03:34.980531+00:00 localhost kernel: [80233.333932] ? enqueue_entity+0x112/0x670 2019-01-22T09:03:34.980547+00:00 localhost kernel: [80233.333937] wait_for_completion+0xb4/0x140 2019-01-22T09:03:34.980554+00:00 localhost kernel: [80233.333939] ? wake_up_q+0x70/0x70 2019-01-22T09:03:34.980556+00:00 localhost kernel: [80233.333944] __synchronize_srcu.part.13+0x85/0xb0 2019-01-22T09:03:34.980557+00:00 localhost kernel: [80233.333947] ? trace_raw_output_rcu_utilization+0x50/0x50 2019-01-22T09:03:34.980558+00:00 localhost kernel: [80233.333950] synchronize_srcu+0xd3/0xe0 2019-01-22T09:03:34.980559+00:00 localhost kernel: [80233.333956] ? synchronize_srcu+0xd3/0xe0 2019-01-22T09:03:34.980560+00:00 localhost kernel: [80233.333962] fsnotify_mark_destroy_workfn+0x7c/0xe0 2019-01-22T09:03:34.980568+00:00 localhost kernel: [80233.333966] process_one_work+0x14d/0x410 2019-01-22T09:03:34.980570+00:00 localhost kernel: [80233.333968] worker_thread+0x22b/0x460 2019-01-22T09:03:34.980571+00:00 localhost kernel: [80233.333971] kthread+0x105/0x140 2019-01-22T09:03:34.980572+00:00 localhost kernel: [80233.333974] ? process_one_work+0x410/0x410 2019-01-22T09:03:34.980573+00:00 localhost kernel: [80233.333976] ? kthread_destroy_worker+0x50/0x50 2019-01-22T09:03:34.980574+00:00 localhost kernel: [80233.333979] ret_from_fork+0x35/0x40 The taint on the kernel is from zfs module. Also there are other processes that reach the same state (D) like dockerd, systemd(init) ... 2019-01-22T09:03:34.949861+00:00 localhost kernel: [80233.299475] INFO: task dockerd:2809 blocked for more than 120 seconds. 2019-01-22T09:03:34.949863+00:00 localhost kernel: [80233.303136] Tainted: P O 4.15.0-43-generic #46~16.04.1-Ubuntu 2019-01-22T09:03:34.962084+00:00 localhost kernel: [80233.309016] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 2019-01-22T09:03:34.962114+00:00 localhost kernel: [80233.315513] dockerd D0 2809 1 0x 2019-01-22T09:03:34.962118+00:00 localhost kernel: [80233.315516] Call Trace: 2019-01-22T09:03:34.962120+00:00 localhost kernel: [80233.315521] __schedule+0x3d6/0x8b0 2019-01-22T09:03:34.962122+00:00 localhost kernel: [80233.315528] ? xen_smp_send_reschedule+0x10/0x20 2019-01-22T09:03:34.962137+00:00 localhost kernel: [80233.315532] schedule+0x36/0x80 2019-01-22T09:03:34.962139+00:00 localhost kernel: [80233.315535] schedule_timeout+0x1db/0x370 2019-01-22T09:03:34.962140+00:00 localhost kernel: [80233.315537] ? try_to_wake_up+0x59/0x4a0 2019-01-22T09:03:34.962164+00:00 localhost kernel: [80233.315539] wait_for_completion+0xb4/0x140 2019-01-22T09:03:34.962168+00:00 localhost kernel: [80233.315541] ? wake_up_q+0x70/0x70 2019-01-22T09:03:34.962170+00:00 localhost kernel: [80233.315547] flush_work+0x129/0x1e0 2019-01-22T09:03:34.962171+00:00 localhost kernel: [80233.315552] ? worker_detach_from_pool+0xb0/0xb0 2019-01-22T09:03:34.962186+00:00 localhost kernel: [80233.31] flush_delayed_work+0x3f/0x50 2019-01-22T09:03:34.962194+00:00 localhost kernel: [80233.315559] fsnotify_wait_marks_destroyed+0x15/0x20 2019-01-22T09:03:34.962195+00:00 localhost kernel: [80233.315561] fsnotify_destroy_group+0x48/0xd0 2019-01-22T09:03:34.962196+00:00 localhost kernel: [80233.315563] inotify_release+0x1e/0x50 2019-01-22T09:03:34.962197+00:00 localhost kernel: [80233.315565] __fput+0xea/0x220 2019-01-22T09:03:34.962198+00:00 localhost kernel: [80233.315567] fput+0xe/0x10 2019-01-22T09:03:34.962200+00:00 localhost kernel: [80233.315569]
