BTRFS warning (device loop0): Skipping commit of aborted transaction.
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BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/transaction.c:2061 at cleanup_transaction+0x7e6/0x9c0 fs/btrfs/transaction.c:2061, CPU#0: kworker/u4:2/30
Modules linked in:
CPU: 0 UID: 0 PID: 30 Comm: kworker/u4:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:cleanup_transaction+0x7e9/0x9c0 fs/btrfs/transaction.c:2061
Code: 0a e8 1b 46 d9 fd e9 82 00 00 00 e8 21 49 be fd 84 c0 74 2a e8 08 46 d9 fd eb 72 e8 01 46 d9 fd 48 8d 3d 5a 94 2e 0c 44 89 fe <67> 48 0f b9 3a 4c 8b 6c 24 18 4c 8b 64 24 20 e9 a7 f9 ff ff e8 6e
RSP: 0018:ffffc900003873e0 EFLAGS: 00010293
RAX: ffffffff83ec786f RBX: ffff8880129ef000 RCX: ffff88801ebba4c0
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff901b0cd0
RBP: ffffc90000387510 R08: ffff88801ebba4c0 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: 1ffff11008efc10f
R13: ffff8880477e0878 R14: 0000000000000000 R15: 00000000ffffffe4
FS:  0000000000000000(0000) GS:ffff88808ca4e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5e2547f000 CR3: 0000000040e08000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_commit_transaction+0x25aa/0x31a0 fs/btrfs/transaction.c:2646
 flush_space+0x4da/0xd80 fs/btrfs/space-info.c:923
 do_async_reclaim_metadata_space+0x3fc/0x960 fs/btrfs/space-info.c:1187
 btrfs_async_reclaim_metadata_space+0x89/0xe0 fs/btrfs/space-info.c:1254
 process_one_work kernel/workqueue.c:3276 [inline]
 process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3440
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	0a e8                	or     %al,%ch
   2:	1b 46 d9             	sbb    -0x27(%rsi),%eax
   5:	fd                   	std
   6:	e9 82 00 00 00       	jmp    0x8d
   b:	e8 21 49 be fd       	call   0xfdbe4931
  10:	84 c0                	test   %al,%al
  12:	74 2a                	je     0x3e
  14:	e8 08 46 d9 fd       	call   0xfdd94621
  19:	eb 72                	jmp    0x8d
  1b:	e8 01 46 d9 fd       	call   0xfdd94621
  20:	48 8d 3d 5a 94 2e 0c 	lea    0xc2e945a(%rip),%rdi        # 0xc2e9481
  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:	6e                   	outsb  %ds:(%rsi),(%dx)