Also, can you please provide some more information about how you are
suspending your system. Are you doing it via the command line (and if
so, which command and options), or via the GUI? Thank you.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Philip Cox (philcox)
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https://bugs.launchpad.net/bugs/2076576
Title:
5.15.0-118: NFS causes suspend to fail
Status in linux package in Ubuntu:
Confirmed
Bug description:
When attempting to suspend, I see the following in dmesg:
[ 72.229192] PM: suspend entry (deep)
[ 72.233002] Filesystems sync: 0.003 seconds
[ 72.233311] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 72.234873] OOM killer disabled.
[ 72.234874] Freezing remaining freezable tasks ...
[ 92.242978] Freezing of tasks failed after 20.008 seconds (1 tasks
refusing to freeze, wq_busy=0):
[ 92.243079] task:NFSv4 callback state:I stack: 0 pid: 1696 ppid: 2
flags:0x00004000
[ 92.243090] Call Trace:
[ 92.243094] <TASK>
[ 92.243099] __schedule+0x24e/0x590
[ 92.243111] schedule+0x69/0x110
[ 92.243119] nfs41_callback_svc+0x179/0x180 [nfsv4]
[ 92.243202] ? wait_woken+0x70/0x70
[ 92.243212] ? nfs_map_gid_to_group+0x120/0x120 [nfsv4]
[ 92.243274] kthread+0x127/0x150
[ 92.243283] ? set_kthread_struct+0x50/0x50
[ 92.243291] ret_from_fork+0x1f/0x30
[ 92.243302] </TASK>
[ 92.243411] Restarting kernel threads ... done.
[ 92.243670] OOM killer enabled.
[ 92.243671] Restarting tasks ... done.
[ 92.255414] thermal thermal_zone1: failed to read out thermal zone (-61)
[ 92.255434] PM: suspend exit
[ 92.255480] PM: suspend entry (s2idle)
I've restarted several times, and the problem is consistent and does not seem
to be present in linux-image-5.15.0-117-generic
$ lsb_release -rd
Description: Ubuntu 22.04.4 LTS
Release: 22.04
$ cat /proc/version_signature
Ubuntu 5.15.0-118.128-generic 5.15.160
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