INFO: task kworker/1:0:22 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc6-syzkaller-00044-g1a44b0073b92 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0     state:D stack:25248 pid:22    tgid:22    ppid:2      flags:0x00004000
Workqueue: events_long flush_old_commits
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0xedb/0x5af0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0xe9/0x270 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+0x5b9/0x9d0 kernel/locking/mutex.c:747
 reiserfs_write_lock+0x79/0x100 fs/reiserfs/lock.c:27
 reiserfs_sync_fs+0x95/0x140 fs/reiserfs/super.c:76
 flush_old_commits+0xf5/0x1f0 fs/reiserfs/super.c:111
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
 process_scheduled_works kernel/workqueue.c:2700 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>

Showing all locks held in the system:
4 locks held by kworker/1:0/22:
 #0: ffff888013077538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
 #1: ffffc900003dfd80 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
 #2: ffff8880209240e0 (&type->s_umount_key#24){++++}-{3:3}, at: flush_old_commits+0x79/0x1f0 fs/reiserfs/super.c:97
 #3: ffff8880206ca090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x79/0x100 fs/reiserfs/lock.c:27
1 lock held by khungtaskd/28:
 #0: 
ffffffff8cfa7d60
 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
5 locks held by kworker/u4:6/139:
 #0: ffff8880b983c758
 (
&rq->__lock
){-.-.}-{2:2}
, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
 #1: 
ffff8880b9828888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}
, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
 #2: ffffffff8ce4d2f0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_disable+0x12/0x20 kernel/jump_label.c:242
 #3: 
ffffffff92972738
 (
&obj_hash[i].lock
){-.-.}-{2:2}
, at: debug_object_activate+0x1a0/0x490 lib/debugobjects.c:717
 #4: 
ffffffff8ce69aa8 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_queue+0x73/0x110 arch/x86/kernel/jump_label.c:136
2 locks held by getty/4810:
 #0: ffff888020f480a0 (&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: 
ffffc900020682f0
 (
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
7 locks held by syz-executor342/5063:

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.7.0-rc6-syzkaller-00044-g1a44b0073b92 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5063 Comm: syz-executor342 Not tainted 6.7.0-rc6-syzkaller-00044-g1a44b0073b92 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:skip_atoi+0xb2/0xe0 lib/vsprintf.c:173
Code: d0 7f 04 84 c0 75 2f 0f b6 2b bf 09 00 00 00 83 ed 30 89 ee e8 ff 6c 15 f7 83 fd 09 76 96 e8 85 71 15 f7 44 89 f0 5b 5d 41 5c <41> 5d 41 5e c3 e8 54 58 6b f7 eb ae 48 89 df e8 4a 58 6b f7 eb c7
RSP: 0018:ffffc900033fe838 EFLAGS: 00000293
RAX: 0000000000000005 RBX: ffffffff8acd6f01 RCX: ffffffff8a70eff1
RDX: ffff88801f5b8200 RSI: ffffffff8a70effb RDI: 0000000000000005
RBP: ffffffff8acd6f02 R08: 0000000000000005 R09: 0000000000000009
R10: 000000000000003c R11: 00000000001ba598 R12: ffffc900033fe950
R13: ffffc900033fe888 R14: 0000000000000005 R15: 0000000000000005
FS:  0000555556c57380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c6e721d008 CR3: 000000007a9b7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 format_decode+0x958/0xba0 lib/vsprintf.c:2587
 vsnprintf+0x13d/0x1870 lib/vsprintf.c:2771
 sprintf+0xcd/0x100 lib/vsprintf.c:3023
 print_time kernel/printk/printk.c:1324 [inline]
 info_print_prefix+0x258/0x350 kernel/printk/printk.c:1350
 record_print_text+0x143/0x410 kernel/printk/printk.c:1399
 printk_get_next_message+0x2ce/0x7c0 kernel/printk/printk.c:2828
 console_emit_next_record kernel/printk/printk.c:2868 [inline]
 console_flush_all+0x3b0/0xd60 kernel/printk/printk.c:2967
 console_unlock+0x10c/0x260 kernel/printk/printk.c:3036
 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2303
 vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2328
 __reiserfs_warning+0x102/0x1a0 fs/reiserfs/prints.c:290
 reiserfs_read_bitmap_block+0x3a9/0x520 fs/reiserfs/bitmap.c:1434
 scan_bitmap_block.constprop.0+0x1c9/0x1080 fs/reiserfs/bitmap.c:164
 scan_bitmap fs/reiserfs/bitmap.c:402 [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+0x2b9f/0x5770 fs/reiserfs/bitmap.c:1375
 reiserfs_new_unf_blocknrs fs/reiserfs/reiserfs.h:3363 [inline]
 _allocate_block fs/reiserfs/inode.c:645 [inline]
 reiserfs_get_block+0xb13/0x4570 fs/reiserfs/inode.c:756
 __block_write_begin_int+0x3c0/0x1560 fs/buffer.c:2119
 reiserfs_write_begin+0x350/0x7d0 fs/reiserfs/inode.c:2767
 generic_perform_write+0x278/0x600 mm/filemap.c:3918
 __generic_file_write_iter+0x1f9/0x240 mm/filemap.c:4013
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4039
 call_write_iter include/linux/fs.h:2020 [inline]
 do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735
 do_iter_write+0x17f/0x7f0 fs/read_write.c:860
 vfs_writev+0x221/0x700 fs/read_write.c:933
 do_pwritev+0x1af/0x260 fs/read_write.c:1030
 __do_sys_pwritev2 fs/read_write.c:1089 [inline]
 __se_sys_pwritev2 fs/read_write.c:1080 [inline]
 __x64_sys_pwritev2+0xef/0x150 fs/read_write.c:1080
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f784bb47f99
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd8e4617d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f784bb9108c RCX: 00007f784bb47f99
RDX: 0000000000000001 RSI: 0000000020000480 RDI: 0000000000000005
RBP: 00007f784bbbd5f0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000f000 R11: 0000000000000246 R12: 00007ffd8e461810
R13: 00007ffd8e461a38 R14: 431bde82d7b634db R15: 00007f784bb9101d
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 4.395 msecs