INFO: task syz-executor.4:2246 can't die for more than 143 seconds.
task:syz-executor.4  state:R  running task     stack:28400 pid: 2246 ppid:  6563 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4953 [inline]
 __schedule+0x940/0x26f0 kernel/sched/core.c:6234
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6400
 __cond_resched+0x13/0x20 kernel/sched/core.c:8113
 _cond_resched include/linux/sched.h:2026 [inline]
 tctx_task_work+0x3f9/0x630 fs/io_uring.c:2177
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 tracehook_notify_signal include/linux/tracehook.h:214 [inline]
 handle_signal_work kernel/entry/common.c:146 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x256/0x290 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: 0033:0x7f9e30fde8d9
RSP: 002b:00007f9e2e534188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000001000 RBX: 00007f9e310e3020 RCX: 00007f9e30fde8d9
RDX: 0000000000000000 RSI: 000000000000688c RDI: 0000000000000003
RBP: 00007f9e31038cb4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8a5c25ff R14: 00007f9e2e534300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8bb813a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
2 locks held by kworker/u4:3/56:
 #0: ffff8880b9d39a58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:478 [inline]
 #0: ffff8880b9d39a58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1317 [inline]
 #0: ffff8880b9d39a58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1615 [inline]
 #0: ffff8880b9d39a58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x26f0 kernel/sched/core.c:6148
 #1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
1 lock held by in:imklog/6232:
 #0: ffff8880190fb770 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
1 lock held by systemd-udevd/13422:
1 lock held by syz-executor.4/2246:

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