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BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/inode.c:3298 at btrfs_finish_one_ordered+0x245d/0x28c0 fs/btrfs/inode.c:3298, CPU#0: kworker/u32:7/219
Modules linked in:
CPU: 0 UID: 0 PID: 219 Comm: kworker/u32:7 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+0x245f/0x28c0 fs/btrfs/inode.c:3298
Code: 87 e4 cf fd 48 8d 3d a0 64 a7 0c 89 ee 67 48 0f b9 3a c6 44 24 30 01 e9 f5 08 f7 fc e8 6a e4 cf fd 48 8d 3d 93 64 a7 0c 89 ee <67> 48 0f b9 3a c6 44 24 30 01 e9 b3 0a f7 fc 48 8b 7c 24 78 e8 c8
RSP: 0018:ffffc90000fc7a28 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803714e840 RCX: ffffffff8438aa74
RDX: ffff88802551a540 RSI: 00000000ffffffe4 RDI: ffffffff90e01090
RBP: 00000000ffffffe4 R08: 0000000000000005 R09: fffffffffffffffb
R10: ffffffffffffffe4 R11: 000000000000755b R12: ffff888039f29b00
R13: ffff88804bc81a70 R14: ffff8880413aba30 R15: ffff88803714e880
FS:  0000000000000000(0000) GS:ffff8880d6383000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b496e1c4e CR3: 0000000027b53000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_work_helper+0x214/0xca0 fs/btrfs/async-thread.c:312
 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314
 process_scheduled_works kernel/workqueue.c:3397 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 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:	87 e4                	xchg   %esp,%esp
   2:	cf                   	iret
   3:	fd                   	std
   4:	48 8d 3d a0 64 a7 0c 	lea    0xca764a0(%rip),%rdi        # 0xca764ab
   b:	89 ee                	mov    %ebp,%esi
   d:	67 48 0f b9 3a       	ud1    (%edx),%rdi
  12:	c6 44 24 30 01       	movb   $0x1,0x30(%rsp)
  17:	e9 f5 08 f7 fc       	jmp    0xfcf70911
  1c:	e8 6a e4 cf fd       	call   0xfdcfe48b
  21:	48 8d 3d 93 64 a7 0c 	lea    0xca76493(%rip),%rdi        # 0xca764bb
  28:	89 ee                	mov    %ebp,%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	c6 44 24 30 01       	movb   $0x1,0x30(%rsp)
  34:	e9 b3 0a f7 fc       	jmp    0xfcf70aec
  39:	48 8b 7c 24 78       	mov    0x78(%rsp),%rdi
  3e:	e8                   	.byte 0xe8
  3f:	c8                   	.byte 0xc8