INFO: task syz-executor.3:6065 blocked for more than 143 seconds.
      Not tainted 6.6.0-rc3-syzkaller-gbf6547d8715b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:0     pid:6065  ppid:1      flags:0x0000000d
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1364/0x23b4 kernel/sched/core.c:6695
 schedule+0xc4/0x170 kernel/sched/core.c:6771
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830
 rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178
 __down_write_common kernel/locking/rwsem.c:1306 [inline]
 __down_write kernel/locking/rwsem.c:1315 [inline]
 down_write+0xb4/0xc0 kernel/locking/rwsem.c:1574
 __super_lock fs/super.c:56 [inline]
 __super_lock_excl fs/super.c:71 [inline]
 deactivate_super+0xd8/0x100 fs/super.c:513
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1254
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1261
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2184/0x3c94 arch/arm64/kernel/signal.c:1305
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_svc+0xa0/0x16c arch/arm64/kernel/entry-common.c:679
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffff80008e373700 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:302
5 locks held by kworker/1:1H/3720:
 #0: ffff0001b41f2d58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline]
 #0: ffff0001b41f2d58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1372 [inline]
 #0: ffff0001b41f2d58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1681 [inline]
 #0: ffff0001b41f2d58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2d8/0x23b4 kernel/sched/core.c:6612
 #1: ffff0001b41dee48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3c0/0x618 kernel/sched/psi.c:999
 #2: ffff80008e373700 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:302
 #3: ffff0000c9e1e8d8 (&lo->lo_work_lock){..-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline]
 #3: ffff0000c9e1e8d8 (&lo->lo_work_lock){..-.}-{2:2}, at: loop_queue_work drivers/block/loop.c:838 [inline]
 #3: ffff0000c9e1e8d8 (&lo->lo_work_lock){..-.}-{2:2}, at: loop_queue_rq+0x228/0xae0 drivers/block/loop.c:1882
 #4: ffff80008e373700 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:302
2 locks held by getty/5766:
 #0: ffff0000d23870a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff8000959f02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2206
1 lock held by syz-executor.3/6065:
 #0: ffff00012a4b40e0 (&type->s_umount_key#24){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff00012a4b40e0 (&type->s_umount_key#24){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff00012a4b40e0 (&type->s_umount_key#24){++++}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:513
4 locks held by syz-executor.0/7896:

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