INFO: task kworker/1:0:24 blocked for more than 143 seconds.
      Not tainted 6.9.0-syzkaller-09699-geb6a9339efeb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0     state:D stack:0     pid:24    tgid:24    ppid:2      flags:0x00000008
Workqueue: events_long flush_mdb
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x14a4/0x24d4 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6837
 io_schedule+0x8c/0x12c kernel/sched/core.c:9043
 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+0x78/0xac fs/buffer.c:71
 lock_buffer include/linux/buffer_head.h:427 [inline]
 hfs_mdb_commit+0x140/0xf2c fs/hfs/mdb.c:271
 flush_mdb+0x6c/0x9c fs/hfs/super.c:66
 process_one_work+0x7b0/0x15e8 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x938/0xef4 kernel/workqueue.c:3393
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
INFO: task syz-executor:5676 blocked for more than 143 seconds.
      Not tainted 6.9.0-syzkaller-09699-geb6a9339efeb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:5676  tgid:5676  ppid:1      flags:0x0000000d
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x14a4/0x24d4 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6837
 io_schedule+0x8c/0x12c kernel/sched/core.c:9043
 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+0x78/0xac fs/buffer.c:71
 lock_buffer include/linux/buffer_head.h:427 [inline]
 hfs_mdb_commit+0x9fc/0xf2c fs/hfs/mdb.c:325
 hfs_sync_fs+0x20/0x34 fs/hfs/super.c:35
 sync_filesystem+0xe8/0x218 fs/sync.c:56
 generic_shutdown_super+0x70/0x2b8 fs/super.c:620
 kill_block_super+0x44/0x90 fs/super.c:1675
 deactivate_locked_super+0xc4/0x12c fs/super.c:472
 deactivate_super+0xe0/0x100 fs/super.c:505
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1267
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1274
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
2 locks held by kworker/1:0/24:
 #0: ffff0000c0029148 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x62c/0x15e8 kernel/workqueue.c:3205
 #1: ffff800091a87c20 ((work_completion)(&(&sbi->mdb_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x15e8 kernel/workqueue.c:3205
1 lock held by khungtaskd/31:
 #0: ffff80008d7f5020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328
2 locks held by getty/5310:
 #0: ffff0000cf9620a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff8000958ee2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
1 lock held by syz-executor/5676:
 #0: ffff0000d7cde0e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff0000d7cde0e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff0000d7cde0e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:504

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