INFO: task kworker/1:3:3645 blocked for more than 143 seconds.
Not tainted 6.1.55-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:23040 pid:3645 ppid:2 flags:0x00004000
Workqueue: events_long flush_old_commits
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6554
schedule+0xbf/0x180 kernel/sched/core.c:6630
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6689
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
reiserfs_sync_fs fs/reiserfs/super.c:76 [inline]
flush_old_commits+0x1df/0x2e0 fs/reiserfs/super.c:111
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d12a170 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d12a970 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
#0: ffffffff8d129fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
#0: ffffffff8d129fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d129fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6493
2 locks held by getty/3304:
#0: ffff88814c099098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188
1 lock held by syz-executor.2/3589:
#0: ffffffff8d12f578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#0: ffffffff8d12f578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3b0/0x8a0 kernel/rcu/tree_exp.h:950
4 locks held by kworker/1:3/3645:
#0: ffff888012471538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90004837d20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffff8880224400e0 (&type->s_umount_key#59){++++}-{3:3}, at: flush_old_commits+0xc7/0x2e0 fs/reiserfs/super.c:97
#3: ffff888077d45090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
2 locks held by kworker/1:9/4627:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90015f6fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
4 locks held by kworker/u4:1/28612:
3 locks held by syz-executor.1/6644:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.55-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9574 Comm: syz-executor.1 Not tainted 6.1.55-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x58/0x290 mm/kasan/generic.c:189
Code: 00 00 48 89 fb 48 c1 eb 03 49 b8 00 00 00 00 00 fc ff df 4e 8d 0c 03 4c 8d 54 37 ff 49 c1 ea 03 49 bb 01 00 00 00 00 fc ff df <4f> 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a
RSP: 0018:ffffc900188e6a18 EFLAGS: 00000803
RAX: 0000000000000001 RBX: 1ffffffff2092e57 RCX: ffffffff816a481c
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff904972b8
RBP: 000000000001ffff R08: dffffc0000000000 R09: fffffbfff2092e57
R10: 1ffffffff2092e57 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88806906c680 R14: 0000000000000000 R15: 1ffff1100d20d804
FS: 00007f5cf90ac6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5cf906ad58 CR3: 0000000071ad6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:72 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:228 [inline]
check_wait_context kernel/locking/lockdep.c:4747 [inline]
__lock_acquire+0x78c/0x1f80 kernel/locking/lockdep.c:4998
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
_raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
raw_spin_rq_lock kernel/sched/sched.h:1354 [inline]
rq_lock kernel/sched/sched.h:1644 [inline]
ttwu_queue kernel/sched/core.c:3899 [inline]
try_to_wake_up+0x5bd/0x12e0 kernel/sched/core.c:4224
__queue_work+0xb4b/0xf90 kernel/workqueue.c:1520
mod_delayed_work_on+0x101/0x250 kernel/workqueue.c:1742
kblockd_mod_delayed_work_on+0x25/0x30 block/blk-core.c:1038
blk_flush_queue_rq block/blk-flush.c:143 [inline]
blk_flush_complete_seq+0x6d3/0xc80 block/blk-flush.c:198
blk_insert_flush+0x4eb/0x5e0 block/blk-flush.c:451
blk_mq_submit_bio+0x1405/0x20d0 block/blk-mq.c:2987
__submit_bio+0x261/0x2f0 block/blk-core.c:590
__submit_bio_noacct_mq block/blk-core.c:667 [inline]
submit_bio_noacct_nocheck+0x976/0xd10 block/blk-core.c:696
jbd2_write_superblock+0x51f/0xa00 fs/jbd2/journal.c:1645
jbd2_journal_update_sb_log_tail+0x1ee/0x2f0 fs/jbd2/journal.c:1694
__jbd2_update_log_tail+0x43/0x440 fs/jbd2/journal.c:1112
jbd2_cleanup_journal_tail fs/jbd2/checkpoint.c:346 [inline]
jbd2_log_do_checkpoint+0xf11/0x12a0 fs/jbd2/checkpoint.c:300
jbd2_journal_flush+0x2a4/0xc40 fs/jbd2/journal.c:2465
ext4_ioctl_group_add+0x1f5/0x530 fs/ext4/ioctl.c:954
__ext4_ioctl fs/ext4/ioctl.c:1377 [inline]
ext4_ioctl+0x1d20/0x5f60 fs/ext4/ioctl.c:1614
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5cf827cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5cf90ac0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f5cf839bf80 RCX: 00007f5cf827cae9
RDX: 0000000020000240 RSI: 0000000040286608 RDI: 0000000000000003
RBP: 00007f5cf82c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5cf839bf80 R15: 00007ffc4d8614c8