BTRFS info (device loop4): 0 free space entries at or bigger than 4096 bytes
BTRFS info (device loop4): 4194304 bytes available across all block groups
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 1 PID: 6541 at fs/btrfs/volumes.c:3236 btrfs_remove_chunk+0x1601/0x1920 fs/btrfs/volumes.c:3236
Modules linked in:
CPU: 1 PID: 6541 Comm: syz.4.110 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:btrfs_remove_chunk+0x1601/0x1920 fs/btrfs/volumes.c:3236
Code: e8 44 69 cf fd 0f 0b 49 be 00 00 00 00 00 fc ff df e9 8e fd ff ff e8 5e ed 04 fe 48 c7 c7 00 94 ed 8a 44 89 e6 e8 1f 69 cf fd <0f> 0b 49 be 00 00 00 00 00 fc ff df e9 d5 fd ff ff e8 39 ed 04 fe
RSP: 0000:ffffc900038b78e0 EFLAGS: 00010246
RAX: 9ac1d81da542fe00 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000cde9000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900038b7ad0 R08: ffff8880b8f28c13 R09: 1ffff110171e5182
R10: dffffc0000000000 R11: ffffed10171e5183 R12: ffffffffffffffe4
R13: 0000000000000001 R14: ffff8880654b8001 R15: 1ffff1100467dd10
FS:  00007f6b5e3876c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd4d7f99c8 CR3: 000000005f366000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 btrfs_relocate_chunk+0x292/0x3b0 fs/btrfs/volumes.c:3366
 __btrfs_balance+0x187b/0x21c0 fs/btrfs/volumes.c:4067
 btrfs_balance+0xcb1/0x11c0 fs/btrfs/volumes.c:4444
 btrfs_ioctl_balance+0x4a2/0x730 fs/btrfs/ioctl.c:3647
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6b5d58eba9
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:00007f6b5e387038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6b5d7d5fa0 RCX: 00007f6b5d58eba9
RDX: 0000200000000200 RSI: 00000000c4009420 RDI: 0000000000000005
RBP: 00007f6b5d611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6b5d7d6038 R14: 00007f6b5d7d5fa0 R15: 00007ffc0ecaeae8
 </TASK>