BTRFS info (device loop0): enabling disk space caching
BTRFS info (device loop0): force clearing of disk cache
BTRFS info (device loop0): balance: start -d -m
BTRFS info (device loop0): relocating block group 6881280 flags data|metadata
BTRFS info (device loop0): relocating block group 5242880 flags data|metadata
BTRFS warning (device loop0): Skipping commit of aborted transaction.
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/transaction.c:2045 at cleanup_transaction+0x7e6/0x9c0 fs/btrfs/transaction.c:2045, CPU#1: syz-executor.0/6424
Modules linked in:
CPU: 1 UID: 0 PID: 6424 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:cleanup_transaction+0x7e9/0x9c0 fs/btrfs/transaction.c:2045
Code: 0a e8 5b e2 e3 fd e9 82 00 00 00 e8 d1 e4 c8 fd 84 c0 74 2a e8 48 e2 e3 fd eb 72 e8 41 e2 e3 fd 48 8d 3d ea 6f 92 0b 44 89 fe <67> 48 0f b9 3a 4c 8b 6c 24 18 4c 8b 64 24 20 e9 a7 f9 ff ff e8 5e
RSP: 0018:ffffc9000629f3a0 EFLAGS: 00010293
RAX: ffffffff83e0718f RBX: ffff888036462000 RCX: ffff888031a30000
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff8f72e180
RBP: ffffc9000629f4d0 R08: ffff888031a30000 R09: 0000000000000003
R10: 0000000000000100 R11: 00000000fffffffb R12: 1ffff1100895a866
R13: ffff888044ad4330 R14: 0000000000000000 R15: 00000000ffffffe4
FS:  00007f40fdaae6c0(0000) GS:ffff88812643f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40fe75f7d0 CR3: 000000003e66e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 btrfs_commit_transaction+0x25aa/0x31a0 fs/btrfs/transaction.c:2630
 prepare_to_relocate+0x3a1/0x490 fs/btrfs/relocation.c:3479
 relocate_block_group+0x149/0xe90 fs/btrfs/relocation.c:3504
 do_nonremap_reloc+0xa7/0x5b0 fs/btrfs/relocation.c:5251
 btrfs_relocate_block_group+0x5fe/0x980 fs/btrfs/relocation.c:5410
 btrfs_relocate_chunk+0x10f/0x820 fs/btrfs/volumes.c:3590
 __btrfs_balance+0x1dba/0x2af0 fs/btrfs/volumes.c:4492
 btrfs_balance+0xafa/0x11f0 fs/btrfs/volumes.c:4879
 btrfs_ioctl_balance+0x3d6/0x610 fs/btrfs/ioctl.c:3445
 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+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f40fe71e3b9
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 d0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f40fdaae078 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f40fe85bf80 RCX: 00007f40fe71e3b9
RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007f40fe77f498 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f40fe85bf80 R15: 00007fffb019a358
 </TASK>
----------------
Code disassembly (best guess):
   0:	0a e8                	or     %al,%ch
   2:	5b                   	pop    %rbx
   3:	e2 e3                	loop   0xffffffe8
   5:	fd                   	std
   6:	e9 82 00 00 00       	jmp    0x8d
   b:	e8 d1 e4 c8 fd       	call   0xfdc8e4e1
  10:	84 c0                	test   %al,%al
  12:	74 2a                	je     0x3e
  14:	e8 48 e2 e3 fd       	call   0xfde3e261
  19:	eb 72                	jmp    0x8d
  1b:	e8 41 e2 e3 fd       	call   0xfde3e261
  20:	48 8d 3d ea 6f 92 0b 	lea    0xb926fea(%rip),%rdi        # 0xb927011
  27:	44 89 fe             	mov    %r15d,%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	4c 8b 6c 24 18       	mov    0x18(%rsp),%r13
  34:	4c 8b 64 24 20       	mov    0x20(%rsp),%r12
  39:	e9 a7 f9 ff ff       	jmp    0xfffff9e5
  3e:	e8                   	.byte 0xe8
  3f:	5e                   	pop    %rsi