INFO: task syz-executor.2:15962 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc6-syzkaller-17739-g16c9f284e746 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:    0 pid:15962 ppid:  3062 flags:0x0000000d
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
 request_wait_answer+0x1c0/0x3a8 fs/fuse/dev.c:407
 __fuse_request_send+0x1f8/0x264 fs/fuse/dev.c:426
 fuse_simple_request+0x354/0x40c fs/fuse/dev.c:511
 fuse_flush+0x260/0x2e8 fs/fuse/file.c:521
 filp_close+0x50/0xc8 fs/open.c:1421
 close_files fs/file.c:432 [inline]
 put_files_struct+0xec/0x1dc fs/file.c:447
 exit_files+0x48/0x64 fs/file.c:464
 do_exit+0x220/0xbe0 kernel/exit.c:790
 do_group_exit+0x70/0xe8 kernel/exit.c:925
 get_signal+0xb0c/0xb40 kernel/signal.c:2857
 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071
 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637
 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: ffff80000d443568 (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: ffff80000d443bb8 (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: ffff80000d443440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:279
3 locks held by kworker/u4:4/135:
2 locks held by getty/2724:
 #0: ffff0000c71eb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
 #1: ffff80000f61e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
4 locks held by kworker/u4:19/7217:
3 locks held by syz-executor.3/19686:
 #0: ffff000104afd460 (sb_writers#20){.+.+}-{0:0}, at: mnt_want_write+0x20/0x64 fs/namespace.c:393
 #1: ffff0000fe8dcc50 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
 #1: ffff0000fe8dcc50 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: filename_create+0xf8/0x218 fs/namei.c:3784
 #2: ffff0000fe8dd0b8 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0x50/0x70 fs/fuse/inode.c:468
2 locks held by syz-executor.3/19696:
 #0: ffff000106292b38 (&fc->killsb){++++}-{3:3}, at: fuse_notify_inval_entry fs/fuse/dev.c:1499 [inline]
 #0: ffff000106292b38 (&fc->killsb){++++}-{3:3}, at: fuse_notify fs/fuse/dev.c:1788 [inline]
 #0: ffff000106292b38 (&fc->killsb){++++}-{3:3}, at: fuse_dev_do_write+0x11c0/0x1544 fs/fuse/dev.c:1872
 #1: ffff0000fe8dcc50 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
 #1: ffff0000fe8dcc50 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: fuse_reverse_inval_entry+0x58/0x3c4 fs/fuse/dir.c:1167

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