tmpfs: Bad value for 'mpol'
INFO: task kworker/u4:0:7746 blocked for more than 143 seconds.
      Not tainted 5.10.184 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0    state:D stack:24000 pid: 7746 ppid:     2 flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 context_switch kernel/sched/core.c:3800 [inline]
 __schedule+0x824/0x1ea0 kernel/sched/core.c:4548
 schedule+0xcb/0x270 kernel/sched/core.c:4626
 schedule_timeout+0x301/0x380 kernel/time/timer.c:1853
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x168/0x270 kernel/sched/completion.c:138
 io_ring_exit_work+0x428/0x17a0 io_uring/io_uring.c:9540
 process_one_work+0x9a9/0x14b0 kernel/workqueue.c:2279
 worker_thread+0x61d/0x1310 kernel/workqueue.c:2425
 kthread+0x38f/0x470 kernel/kthread.c:313
 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299

Showing all locks held in the system:
1 lock held by khungtaskd/23:
 #0: ffffffff84ff7fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6390
2 locks held by in:imklog/177:
 #0: ffff88800fb185f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xed/0x110 fs/file.c:1018
 #1: ffffffff84fec4b8 (logbuf_lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1296 [inline]
 #1: ffffffff84fec4b8 (logbuf_lock){-.-.}-{2:2}, at: __schedule+0x1be/0x1ea0 kernel/sched/core.c:4466
2 locks held by kworker/u4:0/7746:
 #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline]
 #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
 #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8ac/0x14b0 kernel/workqueue.c:2250
 #1: ffff88803ae47da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x8df/0x14b0 kernel/workqueue.c:2254

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