BTRFS info (device loop7): 5 blocks of free space at or bigger than bytes is
BTRFS info (device loop7): block group 6881280 has 1638400 bytes, 0 used 0 pinned 0 reserved 0 zone_unusable 
BTRFS critical (device loop7): entry offset 6881280, bytes 1638400, bitmap no
BTRFS info (device loop7): block group has cluster?: no
BTRFS info (device loop7): 1 blocks of free space at or bigger than bytes is
------------[ cut here ]------------
WARNING: CPU: 1 PID: 9589 at fs/btrfs/block-group.c:2539 btrfs_create_pending_block_groups+0xd53/0xf40 fs/btrfs/block-group.c:2539
Modules linked in:
CPU: 1 PID: 9589 Comm: syz.7.1126 Not tainted 6.1.146-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:btrfs_create_pending_block_groups+0xd53/0xf40 fs/btrfs/block-group.c:2539
Code: 60 8b d1 8a ba f2 09 00 00 44 89 e1 e8 98 46 89 06 e9 42 f7 ff ff e8 bc 4e fd fd 48 c7 c7 e0 8a d1 8a 44 89 e6 e8 3d 70 c9 fd <0f> 0b e9 43 fe ff ff e8 a1 4e fd fd 48 c7 c7 e0 8a d1 8a 44 89 ee
RSP: 0018:ffffc90003477740 EFLAGS: 00010246
RAX: 108d15d46c2ae600 RBX: 1ffff1100b35360b RCX: 0000000000080000
RDX: ffffc9001180b000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90003477988 R08: dffffc0000000000 R09: fffff5200068ee79
R10: fffff5200068ee79 R11: 1ffff9200068ee78 R12: 00000000ffffffe4
R13: 0000000000000000 R14: ffff888059a9b058 R15: ffff88807c99c001
FS:  00007f8133be86c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003000 CR3: 0000000062772000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __btrfs_end_transaction+0x154/0x690 fs/btrfs/transaction.c:1012
 btrfs_inc_block_group_ro+0x62b/0x700 fs/btrfs/block-group.c:2803
 btrfs_relocate_block_group+0x450/0xd70 fs/btrfs/relocation.c:4052
 btrfs_relocate_chunk+0x126/0x3b0 fs/btrfs/volumes.c:3350
 __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: 0033:0x7f8132d8e9a9
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:00007f8133be8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8132fb5fa0 RCX: 00007f8132d8e9a9
RDX: 0000200000000440 RSI: 00000000c4009420 RDI: 0000000000000003
RBP: 00007f8132e10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8132fb5fa0 R15: 00007fffc1f5e7e8
 </TASK>