INFO: task syz-executor.5:8748 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:    0 pid: 8748 ppid:  3065 flags:0x00000001
Call trace:
 __switch_to+0x180/0x298 arch/arm64/kernel/process.c:557
 context_switch kernel/sched/core.c:5182 [inline]
 __schedule+0x414/0x5a0 kernel/sched/core.c:6494
 schedule+0x64/0xa4 kernel/sched/core.c:6570
 rwsem_down_write_slowpath+0x258/0x468 kernel/locking/rwsem.c:1182
 __down_write_common kernel/locking/rwsem.c:1297 [inline]
 __down_write kernel/locking/rwsem.c:1306 [inline]
 down_write_nested+0x90/0xd8 kernel/locking/rwsem.c:1663
 inode_lock_nested include/linux/fs.h:791 [inline]
 lock_rename+0x84/0xec fs/namei.c:2990
 do_renameat2+0x220/0x758 fs/namei.c:4848
 __do_sys_renameat2 fs/namei.c:4940 [inline]
 __se_sys_renameat2 fs/namei.c:4937 [inline]
 __arm64_sys_renameat2+0x6c/0x88 fs/namei.c:4937
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/10:
 #0: ffff80000d433568 (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/11:
 #0: ffff80000d433bb8 (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/26:
 #0: ffff80000d433440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:279
2 locks held by getty/2712:
 #0: ffff0000c6927898 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
 #1: ffff80000f60e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:16/4338:
2 locks held by kworker/u4:6/28427:
 #0: ffff0000c0014938 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x270/0x504 kernel/workqueue.c:2262
 #1: ffff80001613bd80 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x29c/0x504 kernel/workqueue.c:2264
2 locks held by syz-executor.5/8732:
2 locks held by syz-executor.5/8748:
 #0: ffff00010e7ab460 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x20/0x64 fs/namespace.c:393
 #1: ffff0000ca634b40 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
 #1: ffff0000ca634b40 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: lock_rename+0x84/0xec fs/namei.c:2990
1 lock held by udevd/8882:
 #0: ffff0000c679d460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write+0x20/0x64 fs/namespace.c:393
2 locks held by syz-executor.3/16445:
 #0: ffff0000c52c4460 (sb_writers#3){.+.+}-{0:0}, at: do_sendfile+0x27c/0x68c fs/read_write.c:1248
 #1: ffff000105513d60 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #1: ffff000105513d60 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_dio_write_iter fs/ext4/file.c:510 [inline]
 #1: ffff000105513d60 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_file_write_iter+0x290/0xc6c fs/ext4/file.c:677
2 locks held by syz-executor.0/16484:

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