INFO: task syz-executor.0:8203 blocked for more than 144 seconds.
      Not tainted 6.2.0-syzkaller-18295-ga9b06ec42c0f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:8203  ppid:5969   flags:0x00000009
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5296 [inline]
 __schedule+0xfc8/0x1d64 kernel/sched/core.c:6609
 schedule+0xc4/0x170 kernel/sched/core.c:6685
 io_schedule+0x8c/0x120 kernel/sched/core.c:8871
 bit_wait_io+0x1c/0xac kernel/sched/wait_bit.c:209
 __wait_on_bit_lock+0xcc/0x1e8 kernel/sched/wait_bit.c:90
 out_of_line_wait_on_bit_lock+0x194/0x21c 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+0xf8/0x14c include/linux/buffer_head.h:397
 __sync_dirty_buffer+0x6c/0x300 fs/buffer.c:2732
 sync_dirty_buffer+0x24/0x34 fs/buffer.c:2758
 __ext4_handle_dirty_metadata+0x188/0x714 fs/ext4/ext4_jbd2.c:387
 ext4_convert_inline_data_nolock+0x66c/0xbc4 fs/ext4/inline.c:1255
 ext4_convert_inline_data+0x38c/0x50c fs/ext4/inline.c:2066
 ext4_fallocate+0x124/0x20f0 fs/ext4/extents.c:4701
 vfs_fallocate+0x478/0x5b4 fs/open.c:323
 ioctl_preallocate+0x278/0x324 fs/ioctl.c:290
 do_vfs_ioctl+0x1ac0/0x26e0 fs/ioctl.c:849
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffff800015e06ff0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcb4 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffff800015e077f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcb4 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
 #0: ffff800015e06e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:324
2 locks held by getty/5606:
 #0: ffff0000d3067098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80001a9002f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:13/8106:
 #0: ffff0000c0e45938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x664/0x16b4 kernel/workqueue.c:2262
 #1: ffff80001fc67c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x16b4 kernel/workqueue.c:2264
 #2: ffff0000c09100e0 (&type->s_umount_key#39){.+.+}-{3:3}, at: trylock_super+0x28/0xf8 fs/super.c:415
3 locks held by syz-executor.0/8203:
 #0: ffff0000d5ed4460 (sb_writers#3){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2938 [inline]
 #0: ffff0000d5ed4460 (sb_writers#3){.+.+}-{0:0}, at: vfs_fallocate+0x404/0x5b4 fs/open.c:322
 #1: ffff0000e02c8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #1: ffff0000e02c8400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x11c/0x20f0 fs/ext4/extents.c:4700
 #2: ffff0000e02c80c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
 #2: ffff0000e02c80c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x2dc/0x50c fs/ext4/inline.c:2064
1 lock held by udevd/8265:
 #0: ffff0000caf384c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x8f8 block/bdev.c:813
1 lock held by syz-executor.0/9462:
 #0: ffff0000caf384c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x150/0x28c block/bdev.c:1052

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