INFO: task kworker/1:1:25 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D stack:0 pid:25 tgid:25 ppid:2 flags:0x00000008
Workqueue: events_long flush_old_commits
Call trace:
__switch_to+0x314/0x560 arch/arm64/kernel/process.c:556
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1354/0x2360 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xb8/0x19c kernel/sched/core.c:6778
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6835
__mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x2c/0x38 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+0x694/0x1204 kernel/workqueue.c:2627
process_scheduled_works kernel/workqueue.c:2700 [inline]
worker_thread+0x938/0xef4 kernel/workqueue.c:2781
kthread+0x288/0x310 kernel/kthread.c:388
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:857
INFO: task syz-executor.3:8104 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:0 pid:8104 tgid:8101 ppid:6140 flags:0x0000000d
Call trace:
__switch_to+0x314/0x560 arch/arm64/kernel/process.c:556
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1354/0x2360 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xb8/0x19c kernel/sched/core.c:6778
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6835
__mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799
reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27
reiserfs_ioctl+0x74/0x42c fs/reiserfs/ioctl.c:81
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
INFO: task syz-executor.3:8108 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:0 pid:8108 tgid:8108 ppid:8104 flags:0x0000000d
Call trace:
__switch_to+0x314/0x560 arch/arm64/kernel/process.c:556
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1354/0x2360 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xb8/0x19c kernel/sched/core.c:6778
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6835
rwsem_down_write_slowpath+0xcfc/0x1aa0 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:802 [inline]
vfs_unlink+0xd8/0x508 fs/namei.c:4307
do_unlinkat+0x4d0/0x700 fs/namei.c:4382
do_coredump+0x1bdc/0x23cc fs/coredump.c:675
get_signal+0xfec/0x15ec kernel/signal.c:2890
do_signal arch/arm64/kernel/signal.c:1249 [inline]
do_notify_resume+0x328/0x393c arch/arm64/kernel/signal.c:1302
exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
el0_da+0xac/0x168 arch/arm64/kernel/entry-common.c:547
el0t_64_sync_handler+0xcc/0xfc arch/arm64/kernel/entry-common.c:699
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
Showing all locks held in the system:
4 locks held by kworker/1:1/25:
#0: ffff0000c0021538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600
#1: ffff800094007c20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602
#2: ffff0000d8d0c0e0 (&type->s_umount_key#25){++++}-{3:3}, at: flush_old_commits+0xcc/0x2b8 fs/reiserfs/super.c:97
#3: ffff0000d8519090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27
1 lock held by khungtaskd/29:
#0: ffff80008e6c48c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:300
3 locks held by kworker/u4:4/120:
2 locks held by getty/5855:
#0: ffff0000d70390a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
#1: ffff800094e502f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
2 locks held by kworker/u4:1/4651:
1 lock held by syz-executor.3/8104:
#0: ffff0000d8519090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27
3 locks held by syz-executor.3/8107:
3 locks held by syz-executor.3/8108:
#0: ffff0000d8d0c418 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:404
#1: ffff00012d3d82e0 (&type->i_mutex_dir_key#22/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:837 [inline]
#1: ffff00012d3d82e0 (&type->i_mutex_dir_key#22/1){+.+.}-{3:3}, at: do_unlinkat+0x2dc/0x700 fs/namei.c:4369
#2: ffff0001acf602e0 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff0001acf602e0 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: vfs_unlink+0xd8/0x508 fs/namei.c:4307
2 locks held by kworker/1:0/8150:
#0: ffff0000c0022938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600
#1: ffff80009d1a7c20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602
2 locks held by syz-executor.3/14132:
#0: ffff800090f702e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff800090f702e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xdbc net/core/rtnetlink.c:6555
#1: ffff80008e6ca238 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#1: ffff80008e6ca238 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x37c/0x728 kernel/rcu/tree_exp.h:996
1 lock held by syz-executor.5/14138:
#0: ffff800090f702e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff800090f702e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xdbc net/core/rtnetlink.c:6555
=============================================