[Bug 207887] USB keyboard (and other devices) connected to Thinkpad Dock hangs after a while

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=207887

--- Comment #12 from Johannes Wegener (catchall-kernelbug@blubbbla.de) ---
But at least the Call-Trace looks a bit more helpful (mentions hub_event) and
seems to hang in a mutex:


[ +43.245062] INFO: task kworker/0:1:19 blocked for more than 245 seconds.
[  +0.000014]       Tainted: P           OE     5.13.12-arch1-1 #1
[  +0.000005] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  +0.000004] task:kworker/0:1     state:D stack:    0 pid:   19 ppid:     2
flags:0x00004000
[  +0.000011] Workqueue: usb_hub_wq hub_event
[  +0.000015] Call Trace:
[  +0.000005]  __schedule+0x310/0x930
[  +0.000013]  schedule+0x5b/0xc0
[  +0.000007]  schedule_preempt_disabled+0x11/0x20
[  +0.000008]  __mutex_lock.constprop.0+0x2f8/0x4e0
[  +0.000011]  hub_event+0x1a8/0x17f0
[  +0.000011]  ? finish_task_switch.isra.0+0xaa/0x290
[  +0.000012]  process_one_work+0x1e3/0x3b0
[  +0.000010]  worker_thread+0x50/0x3b0
[  +0.000007]  ? process_one_work+0x3b0/0x3b0
[  +0.000007]  kthread+0x133/0x160
[  +0.000005]  ? set_kthread_struct+0x40/0x40
[  +0.000006]  ret_from_fork+0x22/0x30
[  +0.000022] INFO: task kworker/u8:2:84 blocked for more than 245 seconds.
[  +0.000006]       Tainted: P           OE     5.13.12-arch1-1 #1
[  +0.000004] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  +0.000003] task:kworker/u8:2    state:D stack:    0 pid:   84 ppid:     2
flags:0x00004000
[  +0.000007] Workqueue: scsi_tmf_8 scmd_eh_abort_handler
[  +0.000012] Call Trace:
[  +0.000003]  __schedule+0x310/0x930
[  +0.000008]  schedule+0x5b/0xc0
[  +0.000007]  schedule_timeout+0x11c/0x160
[  +0.000011]  wait_for_completion+0xa3/0x100
[  +0.000011]  command_abort+0x63/0x80 [usb_storage]
[  +0.000013]  scmd_eh_abort_handler+0x7e/0x230
[  +0.000009]  process_one_work+0x1e3/0x3b0
[  +0.000008]  worker_thread+0x50/0x3b0
[  +0.000007]  ? process_one_work+0x3b0/0x3b0
[  +0.000007]  kthread+0x133/0x160
[  +0.000005]  ? set_kthread_struct+0x40/0x40
[  +0.000005]  ret_from_fork+0x22/0x30
[  +0.000036] INFO: task udisksd:2185 blocked for more than 245 seconds.
[  +0.000005]       Tainted: P           OE     5.13.12-arch1-1 #1
[  +0.000004] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  +0.000003] task:udisksd         state:D stack:    0 pid: 2185 ppid:     1
flags:0x00000000
[  +0.000007] Call Trace:
[  +0.000003]  __schedule+0x310/0x930
[  +0.000008]  schedule+0x5b/0xc0
[  +0.000007]  schedule_timeout+0x11c/0x160
[  +0.000009]  wait_for_completion+0xa3/0x100
[  +0.000008]  __flush_work.isra.0+0x15b/0x210
[  +0.000008]  ? flush_workqueue_prep_pwqs+0x130/0x130
[  +0.000008]  __cancel_work_timer+0x12e/0x1c0
[  +0.000010]  disk_block_events+0x6f/0x90
[  +0.000007]  blkdev_get_by_dev+0xe5/0x220
[  +0.000008]  ? blkdev_get_by_dev+0x220/0x220
[  +0.000006]  blkdev_open+0x4c/0x90
[  +0.000006]  do_dentry_open+0x14b/0x380
[  +0.000013]  path_openat+0xb93/0x1000
[  +0.000010]  ? _copy_to_iter+0xdb/0x7b0
[  +0.000008]  do_filp_open+0xa5/0x150
[  +0.000014]  do_sys_openat2+0xb0/0x160
[  +0.000006]  __x64_sys_openat+0x53/0x90
[  +0.000006]  do_syscall_64+0x61/0x80
[  +0.000008]  ? exc_page_fault+0x78/0x180
[  +0.000009]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  +0.000012] RIP: 0033:0x7f7a234a5f04
[  +0.000006] RSP: 002b:00007ffc593edb50 EFLAGS: 00000293 ORIG_RAX:
0000000000000101
[  +0.000007] RAX: ffffffffffffffda RBX: 00007ffc593edc54 RCX: 00007f7a234a5f04
[  +0.000004] RDX: 0000000000000000 RSI: 000055a67b147e40 RDI: 00000000ffffff9c
[  +0.000005] RBP: 000055a67b147e40 R08: 0000000000000000 R09: 463801417d483af5
[  +0.000003] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
[  +0.000004] R13: 0000000000000000 R14: 000055a67b12b160 R15: 000055a67a59a828
[Aug25 18:36] INFO: task kworker/0:1:19 blocked for more than 368 seconds.
[  +0.000014]       Tainted: P           OE     5.13.12-arch1-1 #1
[  +0.000005] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  +0.000004] task:kworker/0:1     state:D stack:    0 pid:   19 ppid:     2
flags:0x00004000
[  +0.000011] Workqueue: usb_hub_wq hub_event
[  +0.000014] Call Trace:
[  +0.000006]  __schedule+0x310/0x930
[  +0.000012]  schedule+0x5b/0xc0
[  +0.000007]  schedule_preempt_disabled+0x11/0x20
[  +0.000007]  __mutex_lock.constprop.0+0x2f8/0x4e0
[  +0.000011]  hub_event+0x1a8/0x17f0
[  +0.000012]  ? finish_task_switch.isra.0+0xaa/0x290
[  +0.000012]  process_one_work+0x1e3/0x3b0
[  +0.000010]  worker_thread+0x50/0x3b0
[  +0.000007]  ? process_one_work+0x3b0/0x3b0
[  +0.000007]  kthread+0x133/0x160
[  +0.000005]  ? set_kthread_struct+0x40/0x40
[  +0.000006]  ret_from_fork+0x22/0x30
[  +0.000021] INFO: task kworker/u8:2:84 blocked for more than 368 seconds.
[  +0.000006]       Tainted: P           OE     5.13.12-arch1-1 #1
[  +0.000004] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  +0.000003] task:kworker/u8:2    state:D stack:    0 pid:   84 ppid:     2
flags:0x00004000
[  +0.000007] Workqueue: scsi_tmf_8 scmd_eh_abort_handler
[  +0.000011] Call Trace:
[  +0.000004]  __schedule+0x310/0x930
[  +0.000008]  schedule+0x5b/0xc0
[  +0.000007]  schedule_timeout+0x11c/0x160
[  +0.000010]  wait_for_completion+0xa3/0x100
[  +0.000011]  command_abort+0x63/0x80 [usb_storage]
[  +0.000014]  scmd_eh_abort_handler+0x7e/0x230
[  +0.000009]  process_one_work+0x1e3/0x3b0
[  +0.000008]  worker_thread+0x50/0x3b0
[  +0.000006]  ? process_one_work+0x3b0/0x3b0
[  +0.000008]  kthread+0x133/0x160
[  +0.000004]  ? set_kthread_struct+0x40/0x40
[  +0.000006]  ret_from_fork+0x22/0x30

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