INFO: task segctord:12193 blocked for more than 143 seconds.
      Not tainted 5.15.108-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:    0 pid:12193 ppid:     2 flags:0x00000008
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
 rwsem_down_write_slowpath+0xca8/0x1340 kernel/locking/rwsem.c:1157
 __down_write_common kernel/locking/rwsem.c:1284 [inline]
 __down_write kernel/locking/rwsem.c:1293 [inline]
 down_write+0x25c/0x260 kernel/locking/rwsem.c:1542
 nilfs_transaction_lock+0x150/0x3d0 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2488 [inline]
 nilfs_segctor_thread+0x3bc/0xe94 fs/nilfs2/segment.c:2572
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

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/3735:
 #0: ffff0000d3222098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
 #1: ffff80001a27b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}
, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147
2 locks held by kworker/u4:11/4690:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2279
 #1: ffff800021247c00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2281
5 locks held by syz-executor.3/12187:
1 lock held by segctord/12193:
 #0: ffff00011c7cb2a0 (&nilfs->ns_segctor_sem){++++}-{3:3}, at: nilfs_transaction_lock+0x150/0x3d0 fs/nilfs2/segment.c:357
1 lock held by udevd/4037:
3 locks held by kworker/u4:13/22838:
 #0: ffff0000c03e4138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2279
 #1: ffff80001ed87c00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2281
 #2: ffff8000169a9010 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf4/0x9bc net/core/net_namespace.c:558
2 locks held by kworker/u4:25/27841:
2 locks held by kworker/0:12/1082:
 #0: ffff0000c0020d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2279
 #1: ffff800020bc7c00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2281
1 lock held by syz-executor.1/2066:
 #0: ffff8000169a9010 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2dc/0x5e4 net/core/net_namespace.c:469
2 locks held by syz-executor.1/2083:
 #0: ffff8000169a9010 (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
1 lock held by syz-executor.0/2133:
 #0: ffff0001374520e0 (&type->s_umount_key#60){++++}-{3:3}, at: iterate_supers+0xb0/0x1dc fs/super.c:703
2 locks held by modprobe/2137:

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