[Bug 216322] New: Freezing of tasks failed after 60.004 seconds (1 tasks refusing to freeze... task:fstrim ext4_trim_fs - Dell XPS 13 9310

[bugzilla-daemon@xxxxxxxxxx]

https://bugzilla.kernel.org/show_bug.cgi?id=216322

            Bug ID: 216322
           Summary: Freezing of tasks failed after 60.004 seconds (1 tasks
                    refusing to freeze... task:fstrim  ext4_trim_fs - Dell
                    XPS 13 9310
           Product: File System
           Version: 2.5
    Kernel Version: 5.19.0
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ext4
          Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx
          Reporter: lenb@xxxxxxxxxx
        Regression: No

The system suspend to idle path occasionally times out after 60 seconds
and throws the stack trace below.

The result is that the suspend path is aborted and the systems continues
running.

Unfortunately, when a user invokes suspend, they expect it to work,
and they may not be around (lid closed) to try it again when it aborts...

[10483.047079] PM: suspend entry (s2idle)
[10483.052777] Filesystems sync: 0.005 seconds
[10483.052782] PM: Preparing system for sleep (s2idle)
[10483.060824] Freezing user space processes ... 
[10543.024088] Freezing of tasks failed after 60.004 seconds (1 tasks refusing
to freeze, wq_busy=0):
[10543.024175] task:fstrim          state:D stack:    0 pid:225775 ppid:     1
flags:0x00004006
[10543.024183] Call Trace:
[10543.024186]  &ltTASK&gt
[10543.024192]  __schedule+0x306/0x9f0
[10543.024202]  schedule+0x5c/0xd0
[10543.024206]  schedule_timeout+0x87/0x160
[10543.024211]  ? timer_migration_handler+0xa0/0xa0
[10543.024217]  trace_clock_x86_tsc+0x20/0x20
[10543.024224]  __wait_for_common+0x8f/0x190
[10543.024228]  ? firmware_map_remove+0x9c/0x9c
[10543.024233]  wait_for_completion_io_timeout+0x1d/0x30
[10543.024237]  submit_bio_wait+0x7f/0xc0
[10543.024244]  blkdev_issue_discard+0x6e/0xc0
[10543.024250]  ext4_try_to_trim_range+0x1f0/0x440
[10543.024259]  ext4_trim_fs+0x327/0x4d0
[10543.024266]  __ext4_ioctl+0x2d3/0x1590
[10543.024270]  ? putname+0x59/0x70
[10543.024275]  ? __seccomp_filter+0x3a6/0x5c0
[10543.024283]  ext4_ioctl+0xe/0x20
[10543.024287]  __x64_sys_ioctl+0x92/0xd0
[10543.024293]  do_syscall_64+0x59/0x90
[10543.024297]  ? do_syscall_64+0x69/0x90
[10543.024300]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[10543.024306] RIP: 0033:0x7f2ae6b1aaff
[10543.024312] RSP: 002b:00007ffd41e6de60 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[10543.024317] RAX: ffffffffffffffda RBX: 00007ffd41e6dfb0 RCX:
00007f2ae6b1aaff
[10543.024319] RDX: 00007ffd41e6ded0 RSI: 00000000c0185879 RDI:
0000000000000003
[10543.024322] RBP: 00005621c3642e90 R08: 00005621c3642e90 R09:
0000000000000000
[10543.024324] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000003
[10543.024326] R13: 00005621c3642ce0 R14: 00005621c3642980 R15:
00005621c3642980
[10543.024330]  &lt/TASK&gt
[10543.024343] OOM killer enabled.
[10543.024344] Restarting tasks ... done.
[10543.085776] PM: suspend exit

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