Public bug reported:
This report is for a Thinkpad T480s running Linux Mint 21.3.
After upgrading from kernel 5.15.0-117 to 5.15.0-118, my laptop failed
to suspend when requested. Examination of syslog shows the following
error in the suspend transaction logging:
Aug 8 21:29:34 t480slinux systemd-sleep[23183]: Entering sleep state
'suspend'...
Aug 8 21:29:34 t480slinux kernel: [ 6032.168809] PM: suspend entry (deep)
Aug 8 21:29:34 t480slinux kernel: [ 6032.181211] Filesystems sync: 0.012
seconds
Aug 8 21:29:54 t480slinux kernel: [ 6032.305584] Freezing user space processes
... (elapsed 0.003 seconds) done.
Aug 8 21:29:54 t480slinux kernel: [ 6032.308705] OOM killer disabled.
Aug 8 21:29:54 t480slinux kernel: [ 6032.308706] Freezing remaining freezable
tasks ...
Aug 8 21:29:54 t480slinux kernel: [ 6052.311039] Freezing of tasks failed
after 20.002 seconds (1 tasks refusing to freeze, wq_busy=0):
Aug 8 21:29:54 t480slinux kernel: [ 6052.311121] task:lockd state:I
stack: 0 pid: 2867 ppid: 2 flags:0x00004000
Aug 8 21:29:54 t480slinux kernel: [ 6052.311141] Call Trace:
Aug 8 21:29:54 t480slinux kernel: [ 6052.311149] <TASK>
Aug 8 21:29:54 t480slinux kernel: [ 6052.311161] __schedule+0x24e/0x590
Aug 8 21:29:54 t480slinux kernel: [ 6052.311184] schedule+0x69/0x110
Aug 8 21:29:54 t480slinux kernel: [ 6052.311196] schedule_timeout+0x105/0x140
Aug 8 21:29:54 t480slinux kernel: [ 6052.311219] svc_get_next_xprt+0xf1/0x190
[sunrpc]
Aug 8 21:29:54 t480slinux kernel: [ 6052.311413] svc_recv+0x1a9/0x330 [sunrpc]
Aug 8 21:29:54 t480slinux kernel: [ 6052.311588] lockd+0xa9/0x1c0 [lockd]
Aug 8 21:29:54 t480slinux kernel: [ 6052.311623] ? set_grace_period+0xa0/0xa0
[lockd]
Aug 8 21:29:54 t480slinux kernel: [ 6052.311652] kthread+0x127/0x150
Aug 8 21:29:54 t480slinux kernel: [ 6052.311673] ?
set_kthread_struct+0x50/0x50
Aug 8 21:29:54 t480slinux kernel: [ 6052.311692] ret_from_fork+0x1f/0x30
Aug 8 21:29:54 t480slinux kernel: [ 6052.311720] </TASK>
Aug 8 21:29:54 t480slinux kernel: [ 6052.312371]
Aug 8 21:29:54 t480slinux kernel: [ 6052.312376] Restarting kernel threads ...
done.
Reverting to kernel 5.15.0-117 eliminates the problem and no such error
is produced in syslog when the doing a suspend.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2076483
Title:
Failure to Suspend after Upgrade to Kernel 5.15.0-118
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