BTRFS info (device loop2): balance: start -s
BTRFS info (device loop2): 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#0: syz.2.519/10943
Modules linked in:
CPU: 0 UID: 0 PID: 10943 Comm: syz.2.519 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 80 3c ce fd eb 1c e8 59 95 2a 07 e8 74 3c ce fd eb 10 e8 6d 3c ce fd eb 09 e8 66 3c 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:ffffc9001059f960 EFLAGS: 00010283
RAX: ffffffff83f6beca RBX: ffffffffffffffe4 RCX: 0000000000080000
RDX: ffffc900123a0000 RSI: 0000000000028428 RDI: 0000000000028429
RBP: ffffc9001059fa98 R08: ffff888032608000 R09: 0000000000000003
R10: 0000000000000100 R11: 00000000fffffffb R12: 1ffff920020b3f3c
R13: ffff8880669b4000 R14: ffff8880669b4001 R15: dffffc0000000000
FS:  00007fefda2fe6c0(0000) GS:ffff888126144000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f853e4cf000 CR3: 000000005ba52000 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: 0033:0x7fefdc0ace59
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:00007fefda2fe028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fefdc325fa0 RCX: 00007fefdc0ace59
RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007fefdc142e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fefdc326038 R14: 00007fefdc325fa0 R15: 00007ffea184d378
 </TASK>