INFO: task kworker/u4:4:4853 blocked for more than 430 seconds.
      Not tainted 5.14.0-rc1-syzkaller-00003-g417166ddec02 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:4    state:D stack:    0 pid: 4853 ppid:     2 flags:0x00000000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
[<ffffffff82b99504>] context_switch kernel/sched/core.c:4683 [inline]
[<ffffffff82b99504>] __schedule+0x510/0x1056 kernel/sched/core.c:5940
[<ffffffff82b9a0b0>] schedule+0x66/0x168 kernel/sched/core.c:6019
[<ffffffff82ba0f38>] schedule_timeout+0x124/0x180 kernel/time/timer.c:1854
[<ffffffff82b9b0a4>] do_wait_for_common kernel/sched/completion.c:85 [inline]
[<ffffffff82b9b0a4>] __wait_for_common+0xdc/0x1a8 kernel/sched/completion.c:106
[<ffffffff82b9b18a>] wait_for_common kernel/sched/completion.c:117 [inline]
[<ffffffff82b9b18a>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:138
[<ffffffff8050b65c>] io_ring_exit_work+0x312/0xc62 fs/io_uring.c:8803
[<ffffffff80063992>] process_one_work+0x5e0/0xf82 kernel/workqueue.c:2276
[<ffffffff8006468a>] worker_thread+0x356/0x8e6 kernel/workqueue.c:2422
[<ffffffff80076384>] kthread+0x25c/0x2c6 kernel/kthread.c:319
[<ffffffff8000515e>] ret_from_exception+0x0/0x14

Showing all locks held in the system:
1 lock held by khungtaskd/917:
 #0: ffffffff83d2afa8 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x32/0x1fa kernel/locking/lockdep.c:6448
1 lock held by klogd/2878:
2 locks held by getty/3044:
 #0: ffffffe00b292098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x48 drivers/tty/tty_ldsem.c:340
 #1: ffffffd010ae52e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9a0/0xafa drivers/tty/n_tty.c:2113
2 locks held by kworker/u4:4/4853:
 #0: ffffffe005621138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 #0: ffffffe005621138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
 #0: ffffffe005621138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x49c/0xf82 kernel/workqueue.c:2247
 #1: ffffffe02a23fd40 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 #1: ffffffe02a23fd40 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
 #1: ffffffe02a23fd40 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x49c/0xf82 kernel/workqueue.c:2247

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