INFO: task systemd-udevd:2970 blocked for more than 163 seconds.
      Not tainted 5.15.0-next-20211111-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:systemd-udevd   state:D stack:22872 pid: 2970 ppid:     1 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4984 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6265
 schedule+0xd2/0x260 kernel/sched/core.c:6338
 blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
 lo_release+0x160/0x1f0 drivers/block/loop.c:1768
 blkdev_put_whole block/bdev.c:694 [inline]
 blkdev_put+0x2fb/0x9e0 block/bdev.c:956
 blkdev_close+0x6a/0x80 block/fops.c:515
 __fput+0x286/0x9f0 fs/file_table.c:280
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
 exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2fb0d75270
RSP: 002b:00007ffdfe82b598 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007ffdfe82b670 RCX: 00007f2fb0d75270
RDX: 0000000000000000 RSI: 000000000000125f RDI: 000000000000000e
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000010
R10: 0000000000000020 R11: 0000000000000246 R12: 00007ffdfe82b740
R13: 0000562c41b44010 R14: 0000562c41d38900 R15: 00007ffdfe82b610
 </TASK>