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:2020 at 0x0, CPU#0: syz.0.44/5787
Modules linked in:
CPU: 0 UID: 0 PID: 5787 Comm: syz.0.44 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:cleanup_transaction fs/btrfs/transaction.c:2020 [inline]
RIP: 0010:btrfs_commit_transaction+0x2f5b/0x3950 fs/btrfs/transaction.c:2611
Code: 07 e8 69 ce f1 fd eb 7d e8 82 be d7 fd 84 c0 74 25 e8 59 ce f1 fd eb 6d e8 52 ce f1 fd 48 8d 3d 7b c4 b9 0b 8b 5c 24 18 89 de <67> 48 0f b9 3a 89 d9 e9 1a 01 00 00 e8 04 28 79 07 89 c3 31 ff 89
RSP: 0018:ffffc9000da9f4e0 EFLAGS: 00010293
RAX: ffffffff83cf3fde RBX: 00000000ffffffe4 RCX: ffff88803e4bc980
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff8f890460
RBP: ffffc9000da9f808 R08: ffff88803e4bc980 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: ffff88803e4bdc38
R13: ffff888059c58000 R14: ffff888059c58000 R15: 0000000000000000
FS:  00007f6d64e2f6c0(0000) GS:ffff88808d6b7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9076f27000 CR3: 00000000435ac000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 prepare_to_relocate+0x39f/0x490 fs/btrfs/relocation.c:3489
 relocate_block_group+0x132/0xd70 fs/btrfs/relocation.c:3514
 btrfs_relocate_block_group+0x6bc/0xc60 fs/btrfs/relocation.c:3983
 btrfs_relocate_chunk+0x12f/0x5c0 fs/btrfs/volumes.c:3448
 __btrfs_balance+0x1860/0x23f0 fs/btrfs/volumes.c:4224
 btrfs_balance+0xac2/0x11b0 fs/btrfs/volumes.c:4601
 btrfs_ioctl_balance+0x3d3/0x610 fs/btrfs/ioctl.c:3560
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d63f8f7c9
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:00007f6d64e2f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6d641e5fa0 RCX: 00007f6d63f8f7c9
RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007f6d64013f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6d641e6038 R14: 00007f6d641e5fa0 R15: 00007ffca1b5ae68
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	e8 69 ce f1 fd       	call   0xfdf1ce6e
   5:	eb 7d                	jmp    0x84
   7:	e8 82 be d7 fd       	call   0xfdd7be8e
   c:	84 c0                	test   %al,%al
   e:	74 25                	je     0x35
  10:	e8 59 ce f1 fd       	call   0xfdf1ce6e
  15:	eb 6d                	jmp    0x84
  17:	e8 52 ce f1 fd       	call   0xfdf1ce6e
  1c:	48 8d 3d 7b c4 b9 0b 	lea    0xbb9c47b(%rip),%rdi        # 0xbb9c49e
  23:	8b 5c 24 18          	mov    0x18(%rsp),%ebx
  27:	89 de                	mov    %ebx,%esi
* 29:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2e:	89 d9                	mov    %ebx,%ecx
  30:	e9 1a 01 00 00       	jmp    0x14f
  35:	e8 04 28 79 07       	call   0x779283e
  3a:	89 c3                	mov    %eax,%ebx
  3c:	31 ff                	xor    %edi,%edi
  3e:	89                   	.byte 0x89