INFO: task segctord:9401 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:0     pid:9401  ppid:2      flags:0x00000008
Call trace:
 __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x408/0x594 kernel/sched/core.c:6521
 schedule+0x64/0xa4 kernel/sched/core.c:6597
 rwsem_down_write_slowpath+0x258/0x468 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x84/0x88 kernel/locking/rwsem.c:1563
 nilfs_transaction_lock+0x8c/0x124 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline]
 nilfs_segctor_thread+0x174/0x634 fs/nilfs2/segment.c:2570
 kthread+0x12c/0x158 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863
INFO: task segctord:13686 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:0     pid:13686 ppid:2      flags:0x00000008
Call trace:
 __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x408/0x594 kernel/sched/core.c:6521
 schedule+0x64/0xa4 kernel/sched/core.c:6597
 rwsem_down_write_slowpath+0x258/0x468 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x84/0x88 kernel/locking/rwsem.c:1563
 nilfs_transaction_lock+0x8c/0x124 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline]
 nilfs_segctor_thread+0x174/0x634 fs/nilfs2/segment.c:2570
 kthread+0x12c/0x158 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
 #0: ffff80000d4a4768 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/12:
 #0: ffff80000d4a4db8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
 #0: ffff80000d4a4640 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303
1 lock held by udevd/2603:
2 locks held by getty/2757:
 #0: ffff0000c7965098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
 #1: ffff80000f6be2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:17/4599:
4 locks held by syz-executor.2/9394:
1 lock held by segctord/9401:
 #0: ffff000111df22a0 (&nilfs->ns_segctor_sem){++++}-{3:3}, at: nilfs_transaction_lock+0x8c/0x124 fs/nilfs2/segment.c:357
5 locks held by syz-executor.3/13679:
1 lock held by segctord/13686:
 #0: ffff0001125382a0 (&nilfs->ns_segctor_sem){++++}-{3:3}, at: nilfs_transaction_lock+0x8c/0x124 fs/nilfs2/segment.c:357
2 locks held by kworker/0:6/21147:
 #0: ffff0000c0010738 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x270/0x504 kernel/workqueue.c:2262
 #1: ffff8000246bbd80 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x29c/0x504 kernel/workqueue.c:2264

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