EXT4-fs (loop7): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop4): VFS: Can't find ext4 filesystem EXT4-fs (loop7): re-mounted. Opts: ,errors=continue INFO: task syz-executor.0:14270 blocked for more than 143 seconds. Not tainted 5.10.60 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27792 pid:14270 ppid: 4509 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:3774 [inline] __schedule+0x84b/0x1e90 kernel/sched/core.c:4523 schedule+0xcb/0x270 kernel/sched/core.c:4601 io_uring_cancel_files fs/io_uring.c:8681 [inline] io_uring_cancel_task_requests+0xbbf/0x1260 fs/io_uring.c:8748 io_uring_flush+0x377/0x590 fs/io_uring.c:8911 filp_close+0xb7/0x170 fs/open.c:1288 close_files fs/file.c:401 [inline] put_files_struct fs/file.c:429 [inline] put_files_struct+0x1d0/0x350 fs/file.c:426 exit_files+0x7e/0xa0 fs/file.c:458 copy_process+0x4593/0x64e0 kernel/fork.c:2355 kernel_clone+0xe7/0xa20 kernel/fork.c:2465 __do_sys_fork+0x8a/0xc0 kernel/fork.c:2528 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 RSP: 002b:00007f4e87c42188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc014a64bf R14: 00007f4e87c42300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6377 1 lock held by in:imklog/179: #0: ffff88800ee53270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930 2 locks held by rs:main Q:Reg/180: #0: ffff88800917f4f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930 #1: ffff88800f934438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:658 =============================================