INFO: task kworker/1:0:21 blocked for more than 143 seconds. Not tainted 5.15.103-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack: 0 pid: 21 ppid: 2 flags:0x00000008 Workqueue: events_long flush_old_commits Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5023 [inline] __schedule+0xfcc/0x1f1c kernel/sched/core.c:6369 schedule+0x11c/0x1c8 kernel/sched/core.c:6452 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6511 __mutex_lock_common+0xba0/0x2154 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_sync_fs fs/reiserfs/super.c:76 [inline] flush_old_commits+0x1b0/0x2b8 fs/reiserfs/super.c:111 process_one_work+0x84c/0x14b8 kernel/workqueue.c:2306 worker_thread+0x910/0x1034 kernel/workqueue.c:2453 kthread+0x37c/0x45c kernel/kthread.c:319 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 INFO: task syz-executor.2:10647 blocked for more than 143 seconds. Not tainted 5.15.103-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack: 0 pid:10647 ppid: 4098 flags:0x00000009 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5023 [inline] __schedule+0xfcc/0x1f1c kernel/sched/core.c:6369 schedule+0x11c/0x1c8 kernel/sched/core.c:6452 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6511 __mutex_lock_common+0xba0/0x2154 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_ioctl+0x74/0x4b8 fs/reiserfs/ioctl.c:81 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __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:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 2 locks held by kworker/u4:0/9: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x14b8 kernel/workqueue.c:2279 #1: ffff8000189c7c00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x14b8 kernel/workqueue.c:2281 4 locks held by kworker/1:0/21: #0: ffff0000c0021538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x66c/0x14b8 kernel/workqueue.c:2279 #1: ffff800018a97c00 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x14b8 kernel/workqueue.c:2281 #2: ffff0000c0fa80e0 (&type->s_umount_key#79){++++}-{3:3}, at: flush_old_commits+0xcc/0x2b8 fs/reiserfs/super.c:97 #3: ffff000116a93090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 1 lock held by khungtaskd/27: #0: ffff800014b92620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:268 2 locks held by kworker/u4:3/292: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x14b8 kernel/workqueue.c:2279 #1: ffff80001c727c00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x14b8 kernel/workqueue.c:2281 3 locks held by kworker/u4:6/442: 2 locks held by kworker/u4:7/455: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x14b8 kernel/workqueue.c:2279 #1: ffff0001b4802c48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x438/0x66c kernel/sched/psi.c:891 1 lock held by udevd/3586: 2 locks held by getty/3740: #0: ffff0000d10e7098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff800018ea02e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147 2 locks held by syz-executor.3/4088: 1 lock held by syz-executor.1/4096: 2 locks held by kworker/u4:9/7844: 4 locks held by syz-executor.2/10614: 1 lock held by syz-executor.2/10647: #0: ffff000116a93090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 2 locks held by syz-executor.2/10679: 1 lock held by syz-executor.5/14446: #0: ffff0000dfb40810 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #0: ffff0000dfb40810 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline] #0: ffff0000dfb40810 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x80/0x1fc net/socket.c:1317 1 lock held by syz-executor.1/14454: =============================================