INFO: task syz-executor:6417 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:6417  tgid:6417  ppid:1      flags:0x0000000d
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 __bch2_fs_stop+0x374/0x570 fs/bcachefs/super.c:634
 bch2_put_super+0x40/0x50 fs/bcachefs/fs.c:2050
 generic_shutdown_super+0x12c/0x2bc fs/super.c:642
 bch2_kill_sb+0x40/0x58 fs/bcachefs/fs.c:2278
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380
 task_work_run+0x230/0x2e0 kernel/task_work.c:239
 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:745
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
3 locks held by kworker/1:1/27:
1 lock held by khungtaskd/31:
 #0: ffff80008fb83160 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
2 locks held by kworker/u8:2/38:
 #0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3210
 #1: ffff800099097c20 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3210
2 locks held by getty/6184:
 #0: ffff0000c196f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b9ee2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/6417:
 #0: ffff0000d4a2a0e0 (&type->s_umount_key#69){+.+.}-{4:4}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff0000d4a2a0e0 (&type->s_umount_key#69){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff0000d4a2a0e0 (&type->s_umount_key#69){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:505
2 locks held by kworker/0:3/6470:
4 locks held by udevadm/14523:
1 lock held by syz.6.2523/14543:
 #0: ffff0000d46c80e0 (&type->s_umount_key#75/1){+.+.}-{4:4}, at: alloc_super+0x1b0/0x834 fs/super.c:344

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