BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
BTRFS info (device loop0): checking UUID tree
BTRFS info (device loop0): balance: start -d -m
BTRFS info (device loop0): relocating block group 6881280 flags data|metadata
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3505 at fs/btrfs/volumes.c:3201 btrfs_remove_chunk+0x1575/0x1aa0 fs/btrfs/volumes.c:3201
Modules linked in:
CPU: 1 PID: 3505 Comm: syz-executor212 Not tainted 5.15.120-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:btrfs_remove_chunk+0x1575/0x1aa0 fs/btrfs/volumes.c:3201
Code: ff e8 3f 59 17 fe 4c 8b 24 24 0f 1f 44 00 00 e8 31 59 17 fe eb 16 e8 2a 59 17 fe 48 c7 c7 c0 35 ca 8a 44 89 f6 e8 3b 25 e3 fd <0f> 0b 4c 89 e7 48 c7 c6 20 39 ca 8a ba 81 0c 00 00 e9 90 fa ff ff
RSP: 0018:ffffc90002c8f920 EFLAGS: 00010246
RAX: e95a1d06f89c7200 RBX: 0000000000000000 RCX: ffff8880785dbb80
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90002c8fad8 R08: ffffffff8166491c R09: ffffed1017364f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888072213420
R13: dffffc0000000000 R14: ffffffffffffffe4 R15: ffff8880762c4001
FS:  00007f2c635126c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53d3bcb440 CR3: 00000000761be000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_relocate_chunk+0x1ce/0x270 fs/btrfs/volumes.c:3318
 __btrfs_balance+0x185e/0x27c0 fs/btrfs/volumes.c:4010
 btrfs_balance+0xd40/0x14a0 fs/btrfs/volumes.c:4400
 btrfs_ioctl_balance+0x643/0x7d0 fs/btrfs/ioctl.c:4130
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f2c63d60209
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 1d 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2c63512218 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2c63de66e8 RCX: 00007f2c63d60209
RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007f2c63de66e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2c63db25cc
R13: 0030656c69662f2e R14: 61635f7261656c63 R15: 0000000100000000
 </TASK>