INFO: task syz.0.15:4886 blocked for more than 143 seconds.
      Not tainted 5.15.185-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.15        state:D stack:    0 pid: 4886 ppid:  4638 flags:0x00000009
Call trace:
 __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0xe00/0x1c0c kernel/sched/core.c:6376
 schedule+0x11c/0x1c8 kernel/sched/core.c:6459
 io_schedule+0x84/0x160 kernel/sched/core.c:8484
 wait_on_page_bit_common+0x61c/0xa74 mm/filemap.c:1356
 __lock_page+0x8c/0xa8 mm/filemap.c:1648
 lock_page include/linux/pagemap.h:625 [inline]
 release_metapage+0x144/0x920 fs/jfs/jfs_metapage.c:736
 discard_metapage fs/jfs/jfs_metapage.h:88 [inline]
 __get_metapage+0xaac/0x10a0 fs/jfs/jfs_metapage.c:645
 jfs_readdir+0x18c8/0x3024 fs/jfs/jfs_dtree.c:3325
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __arm64_sys_getdents64+0x11c/0x340 fs/readdir.c:354
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffff8000143311e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311
2 locks held by getty/3801:
 #0: ffff0000d314f098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
 #1: ffff80001b7902e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c drivers/tty/n_tty.c:2158
2 locks held by kworker/0:5/4138:
 #0: ffff0000c0021938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283
 #1: ffff80001f577c00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285
2 locks held by syz.0.15/4886:
 #0: ffff0000d8dbc870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000e2a82a80 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.1.16/4904:
 #0: ffff0000cb9c9c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000e2bd8580 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.2.17/4920:
 #0: ffff0000cd7f99f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000ecc93d00 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.3.18/4942:
 #0: ffff0000d82814f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000ecc96b40 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.4.19/4968:
 #0: ffff0000dcaff270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000e2b32140 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.5.20/4994:
 #0: ffff0000c82d3c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000ece08ec0 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.6.21/5019:
 #0: ffff0000d5575270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000ece0e200 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.7.22/5051:
 #0: ffff0000cd7f39f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000ecefb3c0 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz.8.23/5076:
 #0: ffff0000cec56ff0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x118/0x170 fs/file.c:1058
 #1: ffff0000ecefcf80 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: iterate_dir+0x124/0x4cc fs/readdir.c:57
2 locks held by syz-executor/5078:
 #0: ffff8000162886e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffff8000162886e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x98c/0xd04 net/core/rtnetlink.c:5647
 #1: ffff800014335ca8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
 #1: ffff800014335ca8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2f0/0x5e0 kernel/rcu/tree_exp.h:845

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