INFO: task syz-executor.5:9638 blocked for more than 143 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.5  state:D stack:0     pid:9638  ppid:5961   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_handle_dirty_dirblock+0x2d0/0x5c0 fs/ext4/namei.c:438
 ext4_finish_convert_inline_dir+0x4d0/0x684 fs/ext4/inline.c:1181
 ext4_convert_inline_data_nolock+0x5c4/0xbc4 fs/ext4/inline.c:1258
 ext4_try_add_inline_entry+0x928/0xd90 fs/ext4/inline.c:1331
 ext4_add_entry+0x430/0xcc8 fs/ext4/namei.c:2385
 ext4_add_nondir+0x98/0x22c fs/ext4/namei.c:2772
 ext4_create+0x314/0x480 fs/ext4/namei.c:2817
 lookup_open fs/namei.c:3413 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0xe6c/0x2578 fs/namei.c:3711
 do_filp_open+0x1bc/0x3cc fs/namei.c:3741
 do_sys_openat2+0x128/0x3d8 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1337
 __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/5605:
 #0: ffff0000d82f8098 (&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
2 locks held by kworker/u4:10/6250:
3 locks held by kworker/u4:17/6714:
 #0: ffff0000c0df2138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x664/0x16b4 kernel/workqueue.c:2262
 #1: ffff800024fe7c20 ((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.5/9638:
 #0: ffff00012c854460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:508
 #1: ffff00012dffd440 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #1: ffff00012dffd440 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: open_last_lookups fs/namei.c:3478 [inline]
 #1: ffff00012dffd440 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: path_openat+0x5e4/0x2578 fs/namei.c:3711
 #2: ffff00012dffd108 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
 #2: ffff00012dffd108 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_add_inline_entry+0xdc/0xd90 fs/ext4/inline.c:1289
1 lock held by udevd/9742:
 #0: ffff0000cbab44c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x8f8 block/bdev.c:813
1 lock held by syz-executor.5/9762:
 #0: ffff0000cbab44c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x8f8 block/bdev.c:813
1 lock held by syz-executor.0/11276:
 #0: ffff0000cbab44c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x150/0x28c block/bdev.c:1052

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