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BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/inode.c:3308 at btrfs_finish_one_ordered+0x21aa/0x2520 fs/btrfs/inode.c:3308, CPU#0: kworker/u4:0/12
Modules linked in:
CPU: 0 UID: 0 PID: 12 Comm: kworker/u4:0 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: btrfs-endio-write btrfs_work_helper
RIP: 0010:btrfs_finish_one_ordered+0x21af/0x2520 fs/btrfs/inode.c:3308
Code: 00 00 e8 c4 32 bd fd 84 c0 0f 84 a2 00 00 00 e8 e7 34 d8 fd e9 cf 02 00 00 e8 dd 34 d8 fd 48 8d 3d a6 88 2d 0c 48 8b 74 24 48 <67> 48 0f b9 3a e9 5f f8 ff ff e8 c2 34 d8 fd c6 05 db 3b 0e 0c 01
RSP: 0018:ffffc9000025f860 EFLAGS: 00010293
RAX: ffffffff83ed9ab3 RBX: 00000000ffffffe4 RCX: ffff88801cad4980
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff901b2360
RBP: ffffc9000025fa30 R08: ffff88801cad4980 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff1100ab32631 R14: 0000000000000000 R15: ffff888055993188
FS:  0000000000000000(0000) GS:ffff88808ca49000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2f856f5880 CR3: 0000000011b60000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_work_helper+0x38c/0xc80 fs/btrfs/async-thread.c:312
 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:	00 00                	add    %al,(%rax)
   2:	e8 c4 32 bd fd       	call   0xfdbd32cb
   7:	84 c0                	test   %al,%al
   9:	0f 84 a2 00 00 00    	je     0xb1
   f:	e8 e7 34 d8 fd       	call   0xfdd834fb
  14:	e9 cf 02 00 00       	jmp    0x2e8
  19:	e8 dd 34 d8 fd       	call   0xfdd834fb
  1e:	48 8d 3d a6 88 2d 0c 	lea    0xc2d88a6(%rip),%rdi        # 0xc2d88cb
  25:	48 8b 74 24 48       	mov    0x48(%rsp),%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 5f f8 ff ff       	jmp    0xfffff893
  34:	e8 c2 34 d8 fd       	call   0xfdd834fb
  39:	c6 05 db 3b 0e 0c 01 	movb   $0x1,0xc0e3bdb(%rip)        # 0xc0e3c1b