BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
BTRFS info (device loop1): balance: start -d -m -s
BTRFS info (device loop1): relocating block group 6881280 flags data|metadata
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4428 at fs/btrfs/volumes.c:3253 btrfs_remove_chunk+0x1322/0x1840 fs/btrfs/volumes.c:3253
Modules linked in:
CPU: 0 PID: 4428 Comm: syz.1.23 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:btrfs_remove_chunk+0x1322/0x1840 fs/btrfs/volumes.c:3253
Code: e9 5b fb ff ff e8 fe da 2f fe 0f 1f 44 00 00 e8 f4 da 2f fe eb 16 e8 ed da 2f fe 48 c7 c7 80 7c 4b 8a 44 89 f6 e8 8e 81 4e 06 <0f> 0b 4c 89 e7 48 c7 c6 e0 7f 4b 8a ba b5 0c 00 00 e9 20 fb ff ff
RSP: 0018:ffffc900045af920 EFLAGS: 00010246
RAX: 16f12577f0666b00 RBX: ffff88801fb58001 RCX: ffff888027ec0000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900045afad8 R08: dffffc0000000000 R09: ffffed1017204f24
R10: ffffed1017204f24 R11: 1ffff11017204f23 R12: ffff8880705de790
R13: dffffc0000000000 R14: ffffffffffffffe4 R15: 1ffff110056d0100
FS:  00007efd69f3c6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe7b3eaeb60 CR3: 0000000029c53000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_relocate_chunk+0x1f5/0x290 fs/btrfs/volumes.c:3370
 __btrfs_balance+0x1641/0x2250 fs/btrfs/volumes.c:4073
 btrfs_balance+0xd89/0x1520 fs/btrfs/volumes.c:4463
 btrfs_ioctl_balance+0x674/0x810 fs/btrfs/ioctl.c:4152
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7efd6accc969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efd69f3c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efd6aef3fa0 RCX: 00007efd6accc969
RDX: 0000000000000000 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007efd6ad4eab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efd6aef3fa0 R15: 00007ffeea4965e8
 </TASK>