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Bug#908216: task btrfs-transacti:663 blocked for more than 120 seconds

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From "Russell Mosemann" <rmosemann@futurefoam.com>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#908216: task btrfs-transacti:663 blocked for more than 120 seconds
Date Sat, 08 Sep 2018 12:20:01 +0200
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Package: linux-image-4.17.0-0.bpo.3-amd6
Severity: important

 
 
 
Sep 07 22:14:51 lxc008 kernel: INFO: task fbackup main:7247 blocked for more than 120 seconds.
Sep 07 22:14:51 lxc008 kernel:       Tainted: G          I       4.17.0-0.bpo.3-amd64 #1 Debian 4.17.17-1~bpo9+1
Sep 07 22:14:51 lxc008 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 07 22:14:51 lxc008 kernel: fbackup main    D    0  7247   1774 0x00000100
Sep 07 22:14:51 lxc008 kernel: Call Trace:
Sep 07 22:14:51 lxc008 kernel:  ? __schedule+0x3dc/0x860
Sep 07 22:14:51 lxc008 kernel:  schedule+0x32/0x80
Sep 07 22:14:51 lxc008 kernel:  schedule_timeout+0x1e5/0x350
Sep 07 22:14:51 lxc008 kernel:  ? sched_clock_cpu+0xc/0xa0
Sep 07 22:14:51 lxc008 kernel:  ? try_to_wake_up+0x54/0x4a0
Sep 07 22:14:51 lxc008 kernel:  wait_for_completion+0x123/0x190
Sep 07 22:14:51 lxc008 kernel:  ? wake_up_q+0x70/0x70
Sep 07 22:14:51 lxc008 kernel:  btrfs_async_run_delayed_refs+0x115/0x140 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  __btrfs_end_transaction+0x1e1/0x2c0 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  btrfs_dirty_inode+0x6a/0xc0 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  touch_atime+0xb2/0xe0
Sep 07 22:14:51 lxc008 kernel:  generic_file_read_iter+0x8f1/0x9f0
Sep 07 22:14:51 lxc008 kernel:  ? aa_file_perm+0x10c/0x380
Sep 07 22:14:51 lxc008 kernel:  ? __seccomp_filter+0x43/0x520
Sep 07 22:14:51 lxc008 kernel:  new_sync_read+0xe9/0x140
Sep 07 22:14:51 lxc008 kernel:  vfs_read+0x91/0x130
Sep 07 22:14:51 lxc008 kernel:  ksys_read+0x52/0xc0
Sep 07 22:14:51 lxc008 kernel:  do_syscall_64+0x55/0x110
Sep 07 22:14:51 lxc008 kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Sep 07 22:14:51 lxc008 kernel: RIP: 0033:0x7f918eb7f20d
Sep 07 22:14:51 lxc008 kernel: RSP: 002b:00007f91197ea560 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
Sep 07 22:14:51 lxc008 kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f918eb7f20d
Sep 07 22:14:51 lxc008 kernel: RDX: 0000000000000008 RSI: 00007f91197ea588 RDI: 000000000000008c
Sep 07 22:14:51 lxc008 kernel: RBP: 00007f91197ea8b0 R08: 00007f90f80ac990 R09: 00000000000000c0
Sep 07 22:14:51 lxc008 kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 00007f90f808eab0
Sep 07 22:14:51 lxc008 kernel: R13: 00007f91197ea810 R14: 00007f91197ea8b0 R15: 00007f912005ea00

Sep 07 22:14:51 lxc008 kernel: INFO: task kworker/u32:1:6671 blocked for more than 120 seconds.
Sep 07 22:14:51 lxc008 kernel:       Tainted: G          I       4.17.0-0.bpo.3-amd64 #1 Debian 4.17.17-1~bpo9+1
Sep 07 22:14:51 lxc008 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 07 22:14:51 lxc008 kernel: kworker/u32:1   D    0  6671      2 0x80000000
Sep 07 22:14:51 lxc008 kernel: Workqueue: btrfs-delayed-meta btrfs_delayed_meta_helper [btrfs]
Sep 07 22:14:51 lxc008 kernel: Call Trace:
Sep 07 22:14:51 lxc008 kernel:  ? __schedule+0x3dc/0x860
Sep 07 22:14:51 lxc008 kernel:  schedule+0x32/0x80
Sep 07 22:14:51 lxc008 kernel:  schedule_timeout+0x1e5/0x350
Sep 07 22:14:51 lxc008 kernel:  ? sched_clock_cpu+0xc/0xa0
Sep 07 22:14:51 lxc008 kernel:  ? try_to_wake_up+0x54/0x4a0
Sep 07 22:14:51 lxc008 kernel:  wait_for_completion+0x123/0x190
Sep 07 22:14:51 lxc008 kernel:  ? wake_up_q+0x70/0x70
Sep 07 22:14:51 lxc008 kernel:  btrfs_async_run_delayed_refs+0x115/0x140 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  __btrfs_end_transaction+0x1e1/0x2c0 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  btrfs_async_run_delayed_root+0x1f4/0x6d0 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x34/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x34/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x34/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x40/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x40/0x70
Sep 07 22:14:51 lxc008 kernel:  normal_work_helper+0xd0/0x320 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  ? __schedule+0x3e4/0x860
Sep 07 22:14:51 lxc008 kernel:  process_one_work+0x177/0x350
Sep 07 22:14:51 lxc008 kernel:  worker_thread+0x4d/0x3c0
Sep 07 22:14:51 lxc008 kernel:  kthread+0xf8/0x130
Sep 07 22:14:51 lxc008 kernel:  ? rescuer_thread+0x350/0x350
Sep 07 22:14:51 lxc008 kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Sep 07 22:14:51 lxc008 kernel:  ret_from_fork+0x35/0x40

Sep 07 22:14:51 lxc008 kernel: INFO: task kworker/u33:1:7477 blocked for more than 120 seconds.
Sep 07 22:14:51 lxc008 kernel:       Tainted: G          I       4.17.0-0.bpo.3-amd64 #1 Debian 4.17.17-1~bpo9+1
Sep 07 22:14:51 lxc008 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 07 22:14:51 lxc008 kernel: kworker/u33:1   D    0  7477      2 0x80000000
Sep 07 22:14:51 lxc008 kernel: Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs]
Sep 07 22:14:51 lxc008 kernel: Call Trace:
Sep 07 22:14:51 lxc008 kernel:  ? __schedule+0x3dc/0x860
Sep 07 22:14:51 lxc008 kernel:  schedule+0x32/0x80
Sep 07 22:14:51 lxc008 kernel:  schedule_timeout+0x1e5/0x350
Sep 07 22:14:51 lxc008 kernel:  ? try_to_wake_up+0x54/0x4a0
Sep 07 22:14:51 lxc008 kernel:  ? kmem_cache_free+0x19b/0x1d0
Sep 07 22:14:51 lxc008 kernel:  wait_for_completion+0x123/0x190
Sep 07 22:14:51 lxc008 kernel:  ? wake_up_q+0x70/0x70
Sep 07 22:14:51 lxc008 kernel:  btrfs_async_run_delayed_refs+0x115/0x140 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  __btrfs_end_transaction+0x1e1/0x2c0 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  btrfs_finish_ordered_io+0x17a/0x800 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  normal_work_helper+0xd0/0x320 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  ? __schedule+0x3e4/0x860
Sep 07 22:14:51 lxc008 kernel:  process_one_work+0x177/0x350
Sep 07 22:14:51 lxc008 kernel:  worker_thread+0x4d/0x3c0
Sep 07 22:14:51 lxc008 kernel:  kthread+0xf8/0x130
Sep 07 22:14:51 lxc008 kernel:  ? rescuer_thread+0x350/0x350
Sep 07 22:14:51 lxc008 kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Sep 07 22:14:51 lxc008 kernel:  ret_from_fork+0x35/0x40

Sep 07 22:14:51 lxc008 kernel: INFO: task kworker/u32:0:7478 blocked for more than 120 seconds.
Sep 07 22:14:51 lxc008 kernel:       Tainted: G          I       4.17.0-0.bpo.3-amd64 #1 Debian 4.17.17-1~bpo9+1
Sep 07 22:14:51 lxc008 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 07 22:14:51 lxc008 kernel: kworker/u32:0   D    0  7478      2 0x80000000
Sep 07 22:14:51 lxc008 kernel: Workqueue: btrfs-delayed-meta btrfs_delayed_meta_helper [btrfs]
Sep 07 22:14:51 lxc008 kernel: Call Trace:
Sep 07 22:14:51 lxc008 kernel:  ? __schedule+0x3dc/0x860
Sep 07 22:14:51 lxc008 kernel:  schedule+0x32/0x80
Sep 07 22:14:51 lxc008 kernel:  schedule_timeout+0x1e5/0x350
Sep 07 22:14:51 lxc008 kernel:  ? sched_clock_cpu+0xc/0xa0
Sep 07 22:14:51 lxc008 kernel:  ? try_to_wake_up+0x54/0x4a0
Sep 07 22:14:51 lxc008 kernel:  wait_for_completion+0x123/0x190
Sep 07 22:14:51 lxc008 kernel:  ? wake_up_q+0x70/0x70
Sep 07 22:14:51 lxc008 kernel:  btrfs_async_run_delayed_refs+0x115/0x140 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  __btrfs_end_transaction+0x1e1/0x2c0 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  btrfs_async_run_delayed_root+0x1f4/0x6d0 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x34/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x34/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x34/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x40/0x70
Sep 07 22:14:51 lxc008 kernel:  ? __switch_to_asm+0x40/0x70
Sep 07 22:14:51 lxc008 kernel:  normal_work_helper+0xd0/0x320 [btrfs]
Sep 07 22:14:51 lxc008 kernel:  ? __schedule+0x3e4/0x860
Sep 07 22:14:51 lxc008 kernel:  process_one_work+0x177/0x350
Sep 07 22:14:51 lxc008 kernel:  worker_thread+0x4d/0x3c0
Sep 07 22:14:51 lxc008 kernel:  kthread+0xf8/0x130
Sep 07 22:14:51 lxc008 kernel:  ? rescuer_thread+0x350/0x350
Sep 07 22:14:51 lxc008 kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Sep 07 22:14:51 lxc008 kernel:  ret_from_fork+0x35/0x40

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Bug#908216: task btrfs-transacti:663 blocked for more than 120 seconds "Russell Mosemann" <rmosemann@futurefoam.com> - 2018-09-08 12:20 +0200

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