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#0: kworker/u4:3/42
Modules linked in:
CPU: 0 UID: 0 PID: 42 Comm: kworker/u4:3 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:2045
Code: 0a e8 bb 1a da fd e9 82 00 00 00 e8 d1 24 bf fd 84 c0 74 2a e8 a8 1a da fd eb 72 e8 a1 1a da fd 48 8d 3d ea 3b 2f 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 5e
RSP: 0018:ffffc90000447400 EFLAGS: 00010293
RAX: ffffffff83eb807f RBX: ffff888011aa5000 RCX: ffff88801f4c2480
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff901abc70
RBP: ffffc90000447530 R08: ffff88801f4c2480 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: 1ffff1100903fb59
R13: ffff8880481fdac8 R14: 0000000000000000 R15: 00000000ffffffe4
FS:  0000000000000000(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa659758000 CR3: 0000000058579000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_commit_transaction+0x25aa/0x31a0 fs/btrfs/transaction.c:2630
 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:3275 [inline]
 process_scheduled_works+0xb02/0x1830 kernel/workqueue.c:3358
 worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439
 kthread+0x388/0x470 kernel/kthread.c:467
 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), 1 bytes skipped:
   0:	e8 bb 1a da fd       	call   0xfdda1ac0
   5:	e9 82 00 00 00       	jmp    0x8c
   a:	e8 d1 24 bf fd       	call   0xfdbf24e0
   f:	84 c0                	test   %al,%al
  11:	74 2a                	je     0x3d
  13:	e8 a8 1a da fd       	call   0xfdda1ac0
  18:	eb 72                	jmp    0x8c
  1a:	e8 a1 1a da fd       	call   0xfdda1ac0
  1f:	48 8d 3d ea 3b 2f 0c 	lea    0xc2f3bea(%rip),%rdi        # 0xc2f3c10
  26:	44 89 fe             	mov    %r15d,%esi
* 29:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2e:	4c 8b 6c 24 18       	mov    0x18(%rsp),%r13
  33:	4c 8b 64 24 20       	mov    0x20(%rsp),%r12
  38:	e9 a7 f9 ff ff       	jmp    0xfffff9e4
  3d:	e8                   	.byte 0xe8
  3e:	5e                   	pop    %rsi