INFO: task syz-executor.1:26500 blocked for more than 143 seconds.
      Not tainted 5.15.107-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:    0 pid:26500 ppid:  4113 flags:0x00000009
Call trace:
 __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0xf10/0x1e38 kernel/sched/core.c:6372
 schedule+0x11c/0x1c8 kernel/sched/core.c:6455
 xlog_grant_head_wait+0x390/0xa88 fs/xfs/xfs_log.c:256
 xlog_grant_head_check+0x218/0x3d8
 xfs_log_reserve+0x384/0xc1c fs/xfs/xfs_log.c:464
 xlog_unmount_write fs/xfs/xfs_log.c:937 [inline]
 xfs_log_unmount_write fs/xfs/xfs_log.c:1008 [inline]
 xfs_log_clean+0x3c8/0x9bc fs/xfs/xfs_log.c:1060
 xfs_log_unmount+0x30/0xbc fs/xfs/xfs_log.c:1074
 xfs_unmountfs+0x128/0x1c8 fs/xfs/xfs_mount.c:1040
 xfs_fs_put_super+0x70/0x250 fs/xfs/xfs_super.c:1090
 generic_shutdown_super+0x130/0x29c fs/super.c:475
 kill_block_super+0x70/0xdc fs/super.c:1405
 deactivate_locked_super+0xb8/0x13c fs/super.c:335
 deactivate_super+0x108/0x128 fs/super.c:366
 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150
 task_work_run+0x130/0x1e4 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffff800014aa1660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:268
2 locks held by getty/3736:
 #0: ffff0000d3806098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
 #1: ffff80001a1ce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147
3 locks held by kworker/u4:1/31390:
 #0: ffff0000c03e4138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2279
 #1: ffff800025d47c00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2281
 #2: ffff8000169a9190 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf4/0x9bc net/core/net_namespace.c:558
1 lock held by syz-executor.1/26500:
 #0: ffff00012c4060e0 (&type->s_umount_key#73){+.+.}-{3:3}, at: deactivate_super+0x100/0x128 fs/super.c:365
3 locks held by udevd/26700:
2 locks held by kworker/u4:21/28684:
2 locks held by syz-executor.2/29629:
 #0: ffff8000169a9190 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2dc/0x5e4 net/core/net_namespace.c:469
 #1: ffff800014aa5af0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x54/0x4b0 kernel/rcu/tree.c:3994
2 locks held by syz-executor.0/29642:

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