INFO: task kworker/1:2:1664 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:21328 pid:1664 tgid:1664 ppid:2 flags:0x00004000
Workqueue: events_long flush_old_commits
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
reiserfs_sync_fs fs/reiserfs/super.c:76 [inline]
flush_old_commits+0x1e3/0x2f0 fs/reiserfs/super.c:111
process_one_work kernel/workqueue.c:2627 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task syz-executor.2:11623 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25040 pid:11623 tgid:11623 ppid:5104 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
reiserfs_file_release+0x4b7/0xaa0 fs/reiserfs/file.c:53
__fput+0x3cc/0x9e0 fs/file_table.c:394
__do_sys_close fs/open.c:1587 [inline]
__se_sys_close fs/open.c:1572 [inline]
__x64_sys_close+0x7e/0x100 fs/open.c:1572
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1a7a07bbda
RSP: 002b:00007ffc1f9bf6e0 EFLAGS: 00000293
ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1a7a07bbda
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f1a7a19d980 R08: 0000001b31c20000 R09: 000000000000000e
R10: 000000008b14b928 R11: 0000000000000293 R12: 000000000007c0d4
R13: ffffffffffffffff R14: 00007f1a79c00000 R15: 000000000007bb97
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0:
ffffffff8d92dae0
(
rcu_read_lock
){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
4 locks held by kworker/1:2/1664:
#0: ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
#0: ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
#1: ffffc90005b1fd20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
#1: ffffc90005b1fd20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
#2:
ffff888085df80e0
(
&type->s_umount_key
#24
){++++}-{3:3}
, at: flush_old_commits+0xcb/0x2f0 fs/reiserfs/super.c:97
#3:
ffff88803922f090
(
&sbi->lock
){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
5 locks held by kworker/u4:13/3881:
2 locks held by getty/4813:
#0: ffff8880269870a0
(&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc900015c72f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.2/11623:
#0: ffff88803d3d4998 (&ei->tailpack){+.+.}-{3:3}, at: reiserfs_file_release+0xdd/0xaa0 fs/reiserfs/file.c:41
#1: ffff88803922f090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
8 locks held by syz-executor.2/11624:
2 locks held by syz-executor.5/13836:
#0: ffff888085df80e0 (&type->s_umount_key#24){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888085df80e0 (&type->s_umount_key#24){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
#1: ffff88803922f090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11624 Comm: syz-executor.2 Not tainted 6.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:217 [inline]
RIP: 0010:unwind_next_frame+0x271/0x29e0 arch/x86/kernel/unwind_orc.c:494
Code: 50 00 39 eb 0f 86 f7 1d 00 00 89 e8 48 8d 1c 85 3c 5d 20 90 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 <84> c0 0f 85 89 20 00 00 44 8b 3b 89 e8 ff c0 48 8d 1c 85 3c 5d 20
RSP: 0018:ffffc900001f0608 EFLAGS: 00000802
RAX: 0000000000000000 RBX: ffffffff90225188 RCX: 00000000000a6001
RDX: ffff88801d7b3b80 RSI: 0000000000007d13 RDI: 00000000000a6000
RBP: 0000000000007d13 R08: ffffffff813dc069 R09: ffffc900001f07d0
R10: 0000000000000003 R11: ffff88801d7b3b80 R12: ffffc900001f06e0
R13: 00000000000a6001 R14: dffffc0000000000 R15: ffffffff817d132a
FS: 00007f1a7ad846c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555a807b68c8 CR3: 0000000079db5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x146/0x1a0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xad/0xc0 mm/kasan/generic.c:492
insert_work+0x3e/0x330 kernel/workqueue.c:1647
__queue_work+0xbf4/0x1000 kernel/workqueue.c:1796
call_timer_fn+0x17a/0x5f0 kernel/time/timer.c:1700
expire_timers kernel/time/timer.c:1746 [inline]
__run_timers+0x67a/0x860 kernel/time/timer.c:2022
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
__do_softirq+0x2b8/0x939 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu+0xf1/0x1b0 kernel/softirq.c:632
irq_exit_rcu+0x9/0x20 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1975 [inline]
RIP: 0010:vprintk_emit+0x4e6/0x720 kernel/printk/printk.c:2302
Code: 21 e3 0f 85 a6 01 00 00 e8 97 b0 1d 00 44 8b 24 24 4d 85 ff 75 07 e8 89 b0 1d 00 eb 06 e8 82 b0 1d 00 fb 48 c7 c7 a0 96 80 8d <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 41 56 e8 e1
RSP: 0018:ffffc90004c26c00 EFLAGS: 00000246
RAX: ffffffff8170c9de RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000abdb000 RSI: 000000000003ffff RDI: ffffffff8d8096a0
RBP: ffffc90004c26cf0 R08: ffffffff8170c9bb R09: 1ffffffff21bae93
R10: dffffc0000000000 R11: fffffbfff21bae94 R12: 0000000000000086
R13: dffffc0000000000 R14: ffffffff8170c83d R15: 0000000000000200
_printk+0xd5/0x120 kernel/printk/printk.c:2328
__reiserfs_warning+0x153/0x1a0 fs/reiserfs/prints.c:290
reiserfs_read_bitmap_block+0x236/0x6d0 fs/reiserfs/bitmap.c:1434
scan_bitmap_block+0x1a1/0xff0 fs/reiserfs/bitmap.c:164
scan_bitmap fs/reiserfs/bitmap.c:391 [inline]
allocate_without_wrapping_disk fs/reiserfs/bitmap.c:1161 [inline]
blocknrs_and_prealloc_arrays_from_search_start fs/reiserfs/bitmap.c:1274 [inline]
reiserfs_allocate_blocknrs+0x2b0a/0x5070 fs/reiserfs/bitmap.c:1375
reiserfs_get_block+0x3280/0x5130 fs/reiserfs/inode.c:756
__block_write_begin_int+0x54d/0x1ad0 fs/buffer.c:2119
reiserfs_write_begin+0x24d/0x520 fs/reiserfs/inode.c:2767
generic_perform_write+0x31b/0x630 mm/filemap.c:3918
generic_file_write_iter+0xaf/0x310 mm/filemap.c:4039
call_write_iter include/linux/fs.h:2020 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x792/0xb20 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1a7a07cce9
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:00007f1a7ad840c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1a7a19bf80 RCX: 00007f1a7a07cce9
RDX: 0000000000000010 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00007f1a7a0c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f1a7a19bf80 R15: 00007ffc1f9bf618