INFO: task syz-executor:4032 blocked for more than 143 seconds. Not tainted 5.15.173-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack: 0 pid: 4032 ppid: 1 flags:0x00000009 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5027 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6373 schedule+0x11c/0x1c8 kernel/sched/core.c:6456 io_schedule+0x8c/0x194 kernel/sched/core.c:8481 wait_on_page_bit_common+0x6fc/0xc14 mm/filemap.c:1356 __lock_page+0x8c/0xa8 mm/filemap.c:1648 lock_page include/linux/pagemap.h:625 [inline] release_metapage+0x144/0x918 fs/jfs/jfs_metapage.c:736 discard_metapage fs/jfs/jfs_metapage.h:88 [inline] __get_metapage+0xb38/0x1128 fs/jfs/jfs_metapage.c:645 jfs_readdir+0x2028/0x385c fs/jfs/jfs_dtree.c:3316 iterate_dir+0x1f4/0x4ec __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x1c4/0x4c4 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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 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: ffff800014c922e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 1 lock held by udevd/3640: #0: ffff0001b41a0918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:475 [inline] #0: ffff0001b41a0918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1326 [inline] #0: ffff0001b41a0918 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1621 [inline] #0: ffff0001b41a0918 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x328/0x1e48 kernel/sched/core.c:6287 2 locks held by getty/3783: #0: ffff0000d3227098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001d0702e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158 2 locks held by syz-executor/4032: #0: ffff0000d416c370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x128/0x170 fs/file.c:1057 #1: ffff0000e713b3c0 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: iterate_dir+0x124/0x4ec fs/readdir.c:57 2 locks held by kworker/u4:9/4343: 2 locks held by kworker/u4:10/4344: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff8000203a7c00 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 3 locks held by kworker/0:13/4702: 1 lock held by syz-executor/5945: #0: ffff0000d52580e0 (&type->s_umount_key#50){++++}-{3:3}, at: deactivate_super+0x100/0x128 fs/super.c:365 1 lock held by syz.4.652/7483: 1 lock held by syz.6.653/7486: #0: ffff0000d58aa0e0 (&type->s_umount_key#49/1){+.+.}-{3:3}, at: alloc_super+0x1b8/0x844 fs/super.c:229 2 locks held by syz.0.656/7500: #0: ffff0000d59440e0 (&type->s_umount_key#49/1){+.+.}-{3:3}, at: alloc_super+0x1b8/0x844 fs/super.c:229 #1: ffff0001b418e498 (&base->lock){-.-.}-{2:2}, at: rcu_lock_acquire+0x18/0x54 include/linux/rcupdate.h:311 1 lock held by syz.5.657/7517: =============================================