INFO: task syz-fuzzer:6257 blocked for more than 143 seconds.
      Not tainted 6.9.0-rc4-syzkaller-g6a71d2909427 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-fuzzer      state:D stack:0     pid:6257  tgid:6237  ppid:6234   flags:0x00000008
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x14bc/0x24ec kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6838
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6895
 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1178
 __down_write_common kernel/locking/rwsem.c:1306 [inline]
 __down_write kernel/locking/rwsem.c:1315 [inline]
 down_write+0xb4/0xc0 kernel/locking/rwsem.c:1580
 inode_lock include/linux/fs.h:795 [inline]
 vfs_unlink+0xd8/0x508 fs/namei.c:4324
 do_unlinkat+0x4d0/0x700 fs/namei.c:4399
 __do_sys_unlinkat fs/namei.c:4442 [inline]
 __se_sys_unlinkat fs/namei.c:4435 [inline]
 __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4435
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: ffff80008f0578c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328
2 locks held by getty/5995:
 #0: ffff0000d237d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800097b6e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
3 locks held by syz-fuzzer/6257:
 #0: ffff0000d8476420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409
 #1: ffff0000efe90400 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:830 [inline]
 #1: ffff0000efe90400 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x2dc/0x700 fs/namei.c:4386
 #2: ffff0000efe93600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
 #2: ffff0000efe93600 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_unlink+0xd8/0x508 fs/namei.c:4324
4 locks held by syz-executor.3/6440:

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