INFO: task bch-reclaim/loo:5961 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:bch-reclaim/loo state:D stack:22696 pid:5961  tgid:5961  ppid:2      task_flags:0x200040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 bch2_journal_reclaim_thread+0x16b/0x4f0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5984 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:mod_memcg_lruvec_state+0x70/0x370
Code: 0f b6 2e 49 81 fd ff 00 00 00 0f 84 77 01 00 00 4d 8d 74 24 b8 4c 89 f0 48 c1 e8 03 80 3c 08 00 74 08 4c 89 f7 e8 00 79 f8 ff <4d> 8b 36 bf 01 00 00 00 e8 23 60 65 ff 48 c7 c7 e0 3b 98 8b e8 e7
RSP: 0018:ffffc90003b4f450 EFLAGS: 00000046
RAX: 1ffff1102001b440 RBX: 0000000000000016 RCX: dffffc0000000000
RDX: 00000000ffffffff RSI: 0000000000000016 RDI: ffff8881000da248
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff940008f5db1 R12: ffff8881000da248
R13: 0000000000000013 R14: ffff8881000da200 R15: ffff88813fff7400
FS:  00007f6b6928ec80(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559ec6fcf000 CR3: 000000001f14e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __lruvec_stat_mod_folio+0x1a0/0x2f0
 filemap_unaccount_folio+0x319/0x790
 __filemap_remove_folio+0xc3/0x500
 filemap_remove_folio+0xe6/0x1f0
 truncate_inode_folio+0x5d/0x70
 shmem_undo_range+0x3a9/0x14b0
 shmem_evict_inode+0x272/0xa70
 evict+0x504/0x9c0
 __dentry_kill+0x209/0x660
 dput+0x19f/0x2b0
 __fput+0x68e/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6b68f170a8
Code: 48 8b 05 83 9d 0d 00 64 c7 00 16 00 00 00 83 c8 ff 48 83 c4 20 5b c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 5b 48 8b 15 51 9d 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd8a3566b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007f6b6928eae0 RCX: 00007f6b68f170a8
RDX: 0000559b9f030307 RSI: 00007ffd8a355eb8 RDI: 0000000000000008
RBP: 0000559ec6ef7530 R08: 0000000000000006 R09: 40c32c5ee3b8a845
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000002
R13: 0000559ec6ee2aa0 R14: 0000000000000008 R15: 0000559ec6ed1910
 </TASK>
