BTRFS info (device loop2): at unmount dio bytes count 8192
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WARNING: CPU: 1 PID: 9991 at fs/btrfs/block-group.c:159 btrfs_put_block_group+0x2ed/0x340 fs/btrfs/block-group.c:159
Modules linked in:
CPU: 1 PID: 9991 Comm: syz-executor Not tainted 6.10.0-rc5-syzkaller-00018-g55027e689933 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:btrfs_put_block_group+0x2ed/0x340 fs/btrfs/block-group.c:159
Code: 42 80 3c 20 00 74 08 4c 89 f7 e8 ee 5e 28 fe bf 38 16 00 00 49 03 3e 4c 89 f6 e8 de 8b 01 00 e9 c4 fe ff ff e8 54 fb c5 fd 90 <0f> 0b 90 e9 88 fe ff ff e8 46 fb c5 fd e9 7e fe ff ff e8 3c fb c5
RSP: 0018:ffffc9000b45fac8 EFLAGS: 00010293
RAX: ffffffff83d0294c RBX: 0000000000002000 RCX: ffff888022c11e00
RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff83d027cf R09: 1ffff11004539349
R10: dffffc0000000000 R11: ffffed100453934a R12: dffffc0000000000
R13: 1ffff1100fad682e R14: ffff88807d6b4000 R15: ffff8880229c8188
FS:  0000555591f7e500(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa6d1efb238 CR3: 000000005a5e4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_free_block_groups+0xb77/0x1070 fs/btrfs/block-group.c:4425
 close_ctree+0x741/0xd20 fs/btrfs/disk-io.c:4381
 generic_shutdown_super+0x136/0x2d0 fs/super.c:642
 kill_anon_super+0x3b/0x70 fs/super.c:1226
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2096
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1267
 task_work_run+0x24f/0x310 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe61d76e17
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:00007fff51f4fd48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007efe61d76e17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff51f4fe00
RBP: 00007fff51f4fe00 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff51f50eb0
R13: 00007efe61de364a R14: 0000000000054cf5 R15: 00007fff51f50ef0
 </TASK>