EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
INFO: task syz-executor.4:5848 blocked for more than 143 seconds.
      Not tainted 5.10.52 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:24800 pid: 5848 ppid:   411 flags:0x10004004
Call Trace:
 context_switch kernel/sched/core.c:3776 [inline]
 __schedule+0x848/0x1e80 kernel/sched/core.c:4525
 schedule+0xcb/0x270 kernel/sched/core.c:4603
 io_schedule+0xb6/0x130 kernel/sched/core.c:6294
 bit_wait_io+0x12/0xa0 kernel/sched/wait_bit.c:209
 __wait_on_bit_lock+0x131/0x1c0 kernel/sched/wait_bit.c:90
 out_of_line_wait_on_bit_lock+0xd5/0x110 kernel/sched/wait_bit.c:117
 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
 __lock_buffer fs/buffer.c:69 [inline]
 lock_buffer include/linux/buffer_head.h:366 [inline]
 __sync_dirty_buffer+0x360/0x3f0 fs/buffer.c:3142
 __ext4_handle_dirty_metadata+0x290/0x730 fs/ext4/ext4_jbd2.c:364
 ext4_convert_inline_data_nolock+0x671/0xdc0 fs/ext4/inline.c:1237
 ext4_convert_inline_data+0x31a/0x490 fs/ext4/inline.c:1986
 ext4_punch_hole+0x19e/0x10d0 fs/ext4/inode.c:4010
 ext4_fallocate+0xfa8/0x3bd0 fs/ext4/extents.c:4661
 vfs_fallocate+0x48f/0xcb0 fs/open.c:309
 ksys_fallocate fs/open.c:332 [inline]
 __do_sys_fallocate fs/open.c:340 [inline]
 __se_sys_fallocate fs/open.c:338 [inline]
 __x64_sys_fallocate+0xcf/0x140 fs/open.c:338
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
RSP: 002b:00007fd8da85c188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000003
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000080003 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffe1ee629df R14: 00007fd8da85c300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/22:
 #0: ffffffff84df6660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6377
1 lock held by systemd-journal/104:
1 lock held by in:imklog/209:
 #0: ffff88800ca759f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930
3 locks held by syz-executor.4/5848:
 #0: ffff888045478438 (sb_writers#3){.+.+}-{0:0}, at: ksys_fallocate fs/open.c:332 [inline]
 #0: ffff888045478438 (sb_writers#3){.+.+}-{0:0}, at: __do_sys_fallocate fs/open.c:340 [inline]
 #0: ffff888045478438 (sb_writers#3){.+.+}-{0:0}, at: __se_sys_fallocate fs/open.c:338 [inline]
 #0: ffff888045478438 (sb_writers#3){.+.+}-{0:0}, at: __x64_sys_fallocate+0xcf/0x140 fs/open.c:338
 #1: ffff888046e76580 (&ei->i_mmap_sem){++++}-{3:3}, at: ext4_punch_hole+0x196/0x10d0 fs/ext4/inode.c:4009
 #2: ffff888046e76338 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:142 [inline]
 #2: ffff888046e76338 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x21e/0x490 fs/ext4/inline.c:1984

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