INFO: task kworker/1:2:1954 blocked for more than 143 seconds. Not tainted 6.1.32-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:1954 ppid:2 flags:0x00000008 Workqueue: events_long flush_old_commits Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xee4/0x1c98 kernel/sched/core.c:6554 schedule+0xc4/0x170 kernel/sched/core.c:6630 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6689 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 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+0x7ac/0x1404 kernel/workqueue.c:2289 worker_thread+0x8e4/0xfec kernel/workqueue.c:2436 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 INFO: task syz-executor.2:20088 blocked for more than 143 seconds. Not tainted 6.1.32-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:20088 ppid:4271 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xee4/0x1c98 kernel/sched/core.c:6554 schedule+0xc4/0x170 kernel/sched/core.c:6630 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6689 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 __fdget_pos+0xd8/0x104 fs/file.c:1047 fdget_pos include/linux/file.h:73 [inline] ksys_write+0x8c/0x26c fs/read_write.c:628 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 INFO: task syz-executor.2:20089 blocked for more than 143 seconds. Not tainted 6.1.32-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:20089 ppid:4271 flags:0x00000009 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xee4/0x1c98 kernel/sched/core.c:6554 schedule+0xc4/0x170 kernel/sched/core.c:6630 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6689 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_lookup+0x130/0x3c4 fs/reiserfs/namei.c:364 __lookup_hash+0x108/0x230 fs/namei.c:1601 filename_create+0x22c/0x464 fs/namei.c:3808 do_symlinkat+0xd8/0x6b0 fs/namei.c:4420 __do_sys_symlinkat fs/namei.c:4447 [inline] __se_sys_symlinkat fs/namei.c:4444 [inline] __arm64_sys_symlinkat+0xa4/0xbc fs/namei.c:4444 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 INFO: task syz-executor.2:20090 blocked for more than 143 seconds. Not tainted 6.1.32-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:20090 ppid:4271 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xee4/0x1c98 kernel/sched/core.c:6554 schedule+0xc4/0x170 kernel/sched/core.c:6630 rwsem_down_write_slowpath+0xc80/0x156c kernel/locking/rwsem.c:1189 __down_write_common kernel/locking/rwsem.c:1314 [inline] __down_write kernel/locking/rwsem.c:1323 [inline] down_write_nested+0x90/0x94 kernel/locking/rwsem.c:1690 inode_lock_nested include/linux/fs.h:791 [inline] do_unlinkat+0x2cc/0x82c fs/namei.c:4303 __do_sys_unlinkat fs/namei.c:4363 [inline] __se_sys_unlinkat fs/namei.c:4356 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4356 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015794e70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffff800015795670 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/28: #0: ffff800015794ca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:305 4 locks held by kworker/1:2/1954: #0: ffff0000c0021538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2262 #1: ffff8000230b7c20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2264 #2: ffff000132b060e0 ( &type->s_umount_key #70 ){++++}-{3:3} , at: flush_old_commits+0xcc/0x2b8 fs/reiserfs/super.c:97 #3: ffff0000d2709090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 2 locks held by getty/3975: #0: ffff0000d632c098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001ba602f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2177 3 locks held by kworker/u4:13/9862: 4 locks held by syz-executor.2/20053: 1 lock held by syz-executor.2/20088: #0: ffff0000d8f879e8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xd8/0x104 fs/file.c:1047 3 locks held by syz-executor.2/20089: #0: ffff000132b06460 (sb_writers#24){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff00012eda96c0 (&type->i_mutex_dir_key#15/1){+.+.}-{3:3} , at: inode_lock_nested include/linux/fs.h:791 [inline] , at: filename_create+0x200/0x464 fs/namei.c:3807 #2: ffff0000d2709090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 2 locks held by syz-executor.2/20090: #0: ffff000132b06460 (sb_writers#24){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff00012eda96c0 (&type->i_mutex_dir_key#15/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline] #1: ffff00012eda96c0 (&type->i_mutex_dir_key#15/1){+.+.}-{3:3}, at: do_unlinkat+0x2cc/0x82c fs/namei.c:4303 2 locks held by syz-executor.0/22305: #0: ffff000132b060e0 (&type->s_umount_key#70){++++}-{3:3} , at: iterate_supers+0xb0/0x1dc fs/super.c:744 #1: ffff0000d2709090 ( &sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 =============================================