INFO: task syz-executor.3:5577 blocked for more than 143 seconds. Not tainted 5.10.49 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27352 pid: 5577 ppid: 402 flags:0x10004004 Call Trace: context_switch kernel/sched/core.c:3776 [inline] __schedule+0x83f/0x1e70 kernel/sched/core.c:4525 schedule+0xcb/0x270 kernel/sched/core.c:4603 io_uring_cancel_files fs/io_uring.c:8684 [inline] io_uring_cancel_task_requests+0xbc1/0x1260 fs/io_uring.c:8751 __io_uring_files_cancel+0x110/0x1b0 fs/io_uring.c:8833 io_uring_files_cancel include/linux/io_uring.h:51 [inline] do_exit+0x2f6/0x2780 kernel/exit.c:766 do_group_exit+0x125/0x310 kernel/exit.c:908 get_signal+0x469/0x2200 kernel/signal.c:2758 arch_do_signal+0x88/0x1a90 arch/x86/kernel/signal.c:789 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xf7/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 RSP: 002b:00007fd3f9d01218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000056bf88 RCX: 0000000000466609 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf88 RBP: 000000000056bf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf8c R13: 00007fffbbff8fcf R14: 00007fd3f9d01300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84df64a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6263 2 locks held by in:imklog/203: #0: ffff88800dc90af0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930 #1: ffffffff84dea978 (logbuf_lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1294 [inline] #1: ffffffff84dea978 (logbuf_lock){-.-.}-{2:2}, at: ttwu_queue kernel/sched/core.c:2697 [inline] #1: ffffffff84dea978 (logbuf_lock){-.-.}-{2:2}, at: try_to_wake_up+0x56b/0x1330 kernel/sched/core.c:2977 =============================================