INFO: task syz-executor.4:6937 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-executor.4  state:D stack:0     pid:6937  tgid:6903  ppid:6258   flags:0x00000005
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]
 open_last_lookups fs/namei.c:3563 [inline]
 path_openat+0x5f0/0x2830 fs/namei.c:3796
 do_filp_open+0x1bc/0x3cc fs/namei.c:3826
 do_sys_openat2+0x124/0x1b8 fs/open.c:1406
 do_sys_open fs/open.c:1421 [inline]
 __do_sys_openat fs/open.c:1437 [inline]
 __se_sys_openat fs/open.c:1432 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1432
 __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
4 locks held by kworker/u8:5/1823:
 #0: ffff0000c20c6948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3228
 #1: ffff80009c157c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3228
 #2: ffff0000d818c0e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x28/0xe4 fs/super.c:561
 #3: ffff0000df60cbc8 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x1d4/0x4f8 fs/jfs/inode.c:102
4 locks held by kworker/u8:6/1868:
 #0: ffff0000c20c6948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3228
 #1: ffff80009c177c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3228
 #2: ffff0000ec8100e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x28/0xe4 fs/super.c:561
 #3: ffff0000df5d26c8 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x1d4/0x4f8 fs/jfs/inode.c:102
2 locks held by getty/5999:
 #0: ffff0000d20b70a0 (&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
4 locks held by syz-executor.4/6936:
2 locks held by syz-executor.4/6937:
 #0: ffff0000ec810420 (sb_writers#20){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409
 #1: ffff0000df5d2a80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
 #1: ffff0000df5d2a80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: open_last_lookups fs/namei.c:3563 [inline]
 #1: ffff0000df5d2a80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: path_openat+0x5f0/0x2830 fs/namei.c:3796
4 locks held by syz-executor.0/8171:
2 locks held by syz-executor.0/8179:
 #0: ffff0000d818c420 (sb_writers#20){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409
 #1: ffff0000df60cf80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
 #1: ffff0000df60cf80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: open_last_lookups fs/namei.c:3563 [inline]
 #1: ffff0000df60cf80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: path_openat+0x5f0/0x2830 fs/namei.c:3796
2 locks held by kworker/u8:8/8229:
 #0: ffff0000c0031148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3228
 #1: ffff800099997c20 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3228
1 lock held by udevd/8385:
 #0: ffff0000c154d9d8 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
 #0: ffff0000c154d9d8 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x560 mm/readahead.c:225
1 lock held by syz-executor.1/9736:
 #0: ffff80008f05cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
 #0: ffff80008f05cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a4/0x6c8 kernel/rcu/tree_exp.h:939
4 locks held by syz-executor.0/10676:
2 locks held by syz-executor.4/10694:

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