BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
BTRFS info (device loop0): at unmount dio bytes count 249856
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WARNING: CPU: 0 PID: 31850 at fs/btrfs/block-group.c:159 btrfs_put_block_group fs/btrfs/block-group.c:159 [inline]
WARNING: CPU: 0 PID: 31850 at fs/btrfs/block-group.c:159 btrfs_put_block_group+0x3b6/0x450 fs/btrfs/block-group.c:146
Modules linked in:
CPU: 0 PID: 31850 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller-12824-g9d64bf433c53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:btrfs_put_block_group fs/btrfs/block-group.c:159 [inline]
RIP: 0010:btrfs_put_block_group+0x3b6/0x450 fs/btrfs/block-group.c:146
Code: 00 00 00 4c 89 ef e8 59 6c c9 00 e9 9a fe ff ff e8 3f f8 3f fe e9 f9 fc ff ff e8 35 f8 3f fe e9 2d fd ff ff e8 7b 25 e8 fd 90 <0f> 0b 90 e9 77 fd ff ff e8 6d 25 e8 fd b9 2b 02 00 00 48 c7 c2 c0
RSP: 0018:ffffc90004bafb58 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803ff00800 RCX: ffffffff839ff97c
RDX: ffff88802484bb80 RSI: ffffffff839ffc05 RDI: 0000000000000007
RBP: 000000000003d000 R08: 0000000000000007 R09: 0000000000000000
R10: 000000000003d000 R11: 0000000000000002 R12: ffff88802d554000
R13: 0000000000000001 R14: ffff88803ff00960 R15: ffff88803ff00800
FS:  00005555564f7480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbde75cd000 CR3: 000000001c9a8000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 btrfs_free_block_groups+0x9f5/0x13e0 fs/btrfs/block-group.c:4332
 close_ctree+0xa51/0xf90 fs/btrfs/disk-io.c:4375
 generic_shutdown_super+0x159/0x3d0 fs/super.c:646
 kill_anon_super+0x3a/0x60 fs/super.c:1230
 btrfs_kill_super+0x3b/0x50 fs/btrfs/super.c:2085
 deactivate_locked_super+0xbc/0x1a0 fs/super.c:477
 deactivate_super+0xde/0x100 fs/super.c:510
 cleanup_mnt+0x222/0x450 fs/namespace.c:1267
 task_work_run+0x14d/0x240 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:108 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0x281/0x2b0 kernel/entry/common.c:212
 do_syscall_64+0xe0/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f60c567e0d7
Code: b0 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 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd5b800f18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f60c567e0d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd5b800fd0
RBP: 00007ffd5b800fd0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd5b802090
R13: 00007f60c56c83b9 R14: 00000000001a0b2d R15: 0000000000000008
 </TASK>