syzbot

bcachefs (loop0): flushing journal and stopping allocators, journal seq 3
bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 4
bcachefs (loop0): clean shutdown complete, journal seq 5
bcachefs:[  167.508559][ T5846] bcachefs: bch2_verify_accounting_clean() dev accounting mismatch: u64s 8 type accounting 216182677718433792:0:0 len 0 ver 12884903400: dev_data_type dev=0 data_type=need_discard 1 0 0 in mem 2 0 0
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WARNING: CPU: 0 PID: 5846 at fs/bcachefs/disk_accounting.c:1055 bch2_verify_accounting_clean+0x20cd/0x21d0 fs/bcachefs/disk_accounting.c:1055
Modules linked in:
CPU: 0 UID: 0 PID: 5846 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:bch2_verify_accounting_clean+0x20cd/0x21d0 fs/bcachefs/disk_accounting.c:1055
Code: 63 8f fd eb 24 e8 43 63 8f fd 48 c7 c7 00 f4 53 8b 48 c7 c6 fd 2e ff 8c 48 c7 c2 e0 f4 53 8b 31 c9 49 89 d8 e8 04 48 f8 fc 90 <0f> 0b 90 e9 8d fe ff ff e8 16 63 8f fd e9 c6 fb ff ff e8 0c 63 8f
RSP: 0018:ffffc90004c4f720 EFLAGS: 00010293
RAX: ffffffff842f0994 RBX: 0000000000000000 RCX: ffff888026db9dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004c4fa90 R08: 0000000000000000 R09: 0000000000000000
R10: ffff88806ba68008 R11: ffffed100d74d003 R12: fc403d7cecf10c01
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  000055558675d500(0000) GS:ffff8881268bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc6bede78 CR3: 000000003a2a8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bch2_fs_read_only+0x998/0xb00 fs/bcachefs/super.c:389
 __bch2_fs_stop+0x100/0x900 fs/bcachefs/super.c:677
 generic_shutdown_super+0x132/0x2c0 fs/super.c:643
 bch2_kill_sb+0x41/0x50 fs/bcachefs/fs.c:2618
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1375
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fea13d701f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc3a0abb48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fea13df1d7d RCX: 00007fea13d701f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc3a0abc00
RBP: 00007ffc3a0abc00 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc3a0acc90
R13: 00007fea13df1d7d R14: 0000000000028a60 R15: 00007ffc3a0accd0
 </TASK>