BTRFS critical (device loop2): entry offset 1048576, bytes 4194304, bitmap no
BTRFS info (device loop2): block group has cluster?: no
BTRFS info (device loop2): 0 blocks of free space at or bigger than bytes is
BTRFS info (device loop2): block group 8519680 has 8257536 bytes, 4096 used 0 pinned 8253440 reserved 0 zone_unusable 
BTRFS info (device loop2): block group has cluster?: no
BTRFS info (device loop2): 0 blocks of free space at or bigger than bytes is
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5352 at fs/btrfs/volumes.c:3265 btrfs_remove_chunk+0x14b5/0x19c0 fs/btrfs/volumes.c:3265
Modules linked in:
CPU: 1 PID: 5352 Comm: syz.2.214 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:btrfs_remove_chunk+0x14b5/0x19c0 fs/btrfs/volumes.c:3265
Code: 48 c7 c7 a0 0d d0 8a 44 89 f6 e8 b6 bc e0 fd 0f 0b e9 76 fe ff ff e8 3a 92 14 fe 48 c7 c7 a0 0d d0 8a 44 89 f6 e8 9b bc e0 fd <0f> 0b e9 95 fe ff ff e8 1f 92 14 fe 48 c7 c7 a0 0d d0 8a 44 89 f6
RSP: 0018:ffffc90003c7f920 EFLAGS: 00010246
RAX: 358e1206b834d000 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000c8fa000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90003c7fad0 R08: dffffc0000000000 R09: ffffed10171e4f34
R10: ffffed10171e4f34 R11: 1ffff110171e4f33 R12: 1ffff1100b0886f0
R13: dffffc0000000000 R14: ffffffffffffffe4 R15: ffff888057990001
FS:  00007f56fe8ea6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e5fa535000 CR3: 000000005e445000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_relocate_chunk+0x296/0x3b0 fs/btrfs/volumes.c:3395
 __btrfs_balance+0x1894/0x21e0 fs/btrfs/volumes.c:4098
 btrfs_balance+0xcad/0x11b0 fs/btrfs/volumes.c:4474
 btrfs_ioctl_balance+0x49f/0x720 fs/btrfs/ioctl.c:4531
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f56fd98eba9
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:00007f56fe8ea038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f56fdbd5fa0 RCX: 00007f56fd98eba9
RDX: 0000200000000200 RSI: 00000000c4009420 RDI: 0000000000000005
RBP: 00007f56fda11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f56fdbd6038 R14: 00007f56fdbd5fa0 R15: 00007ffe598782d8
 </TASK>