BTRFS info (device loop6): balance: start -sconvert=raid0,soft,drange=1580..7
BTRFS info (device loop6): relocating block group 1048576 flags system
------------[ cut here ]------------
btrfs_abort_should_print_stack(__error)
WARNING: fs/btrfs/volumes.c:3526 at btrfs_remove_chunk+0xc9b/0x1070 fs/btrfs/volumes.c:3526, CPU#1: syz.6.220/7419
Modules linked in:
CPU: 1 UID: 0 PID: 7419 Comm: syz.6.220 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:btrfs_remove_chunk+0xc9b/0x1070 fs/btrfs/volumes.c:3526
Code: 24 fb 74 12 83 3c 24 f4 75 1a e8 a0 72 ce fd eb 1c e8 19 bb 2a 07 e8 94 72 ce fd eb 10 e8 8d 72 ce fd eb 09 e8 86 72 ce fd 90 <0f> 0b 90 48 8b 04 24 89 c1 f7 d9 e9 43 fc ff ff 44 89 f1 80 e1 07
RSP: 0018:ffffc90005e87960 EFLAGS: 00010287
RAX: ffffffff83f6890a RBX: ffffffffffffffe4 RCX: 0000000000080000
RDX: ffffc900042b1000 RSI: 000000000001d73e RDI: 000000000001d73f
RBP: ffffc90005e87a98 R08: ffff888024d5be00 R09: 0000000000000003
R10: 0000000000000100 R11: 00000000fffffffb R12: 1ffff92000bd0f3c
R13: ffff8880405cc000 R14: ffff8880405cc001 R15: dffffc0000000000
FS:  00007f0d7518e6c0(0000) GS:ffff888126244000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffff0072048 CR3: 0000000034810000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 btrfs_relocate_chunk_finish fs/btrfs/volumes.c:3614 [inline]
 btrfs_relocate_chunk+0x3f1/0x830 fs/btrfs/volumes.c:3668
 __btrfs_balance+0x1b6e/0x29e0 fs/btrfs/volumes.c:4586
 btrfs_balance+0xaa6/0x1180 fs/btrfs/volumes.c:4973
 btrfs_ioctl_balance+0x3dd/0x640 fs/btrfs/ioctl.c:3474
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0d76f3ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0d7518e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0d771b5fa0 RCX: 00007f0d76f3ce59
RDX: 0000200000000780 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007f0d76fd2e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0d771b6038 R14: 00007f0d771b5fa0 R15: 00007ffd8a146118
 </TASK>