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BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/inode.c:3312 at btrfs_finish_one_ordered+0x19e1/0x2420 fs/btrfs/inode.c:3312, CPU#0: kworker/u4:7/1040
Modules linked in:
CPU: 0 UID: 0 PID: 1040 Comm: kworker/u4:7 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+0x19e9/0x2420 fs/btrfs/inode.c:3312
Code: fd d3 d8 fd eb 7f e8 46 d8 bd fd 84 c0 74 25 e8 ed d3 d8 fd eb 6f e8 e6 d3 d8 fd 48 8d 3d ff f6 2d 0c 4c 8b 6c 24 10 44 89 ee <67> 48 0f b9 3a e9 96 00 00 00 e8 78 0e c3 07 41 89 c6 31 ff 89 c6
RSP: 0018:ffffc90005627880 EFLAGS: 00010293
RAX: ffffffff83ecd96a RBX: ffff888037d88001 RCX: ffff88803673c980
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff901ad070
RBP: ffffc90005627a50 R08: ffff88803673c980 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: ffff8880483a4f58
R13: 00000000ffffffe4 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88808ca57000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a1fdd2d58 CR3: 0000000039e2a000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_work_helper+0x38c/0xc80 fs/btrfs/async-thread.c:312
 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: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:	fd                   	std
   1:	d3 d8                	rcr    %cl,%eax
   3:	fd                   	std
   4:	eb 7f                	jmp    0x85
   6:	e8 46 d8 bd fd       	call   0xfdbdd851
   b:	84 c0                	test   %al,%al
   d:	74 25                	je     0x34
   f:	e8 ed d3 d8 fd       	call   0xfdd8d401
  14:	eb 6f                	jmp    0x85
  16:	e8 e6 d3 d8 fd       	call   0xfdd8d401
  1b:	48 8d 3d ff f6 2d 0c 	lea    0xc2df6ff(%rip),%rdi        # 0xc2df721
  22:	4c 8b 6c 24 10       	mov    0x10(%rsp),%r13
  27:	44 89 ee             	mov    %r13d,%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 96 00 00 00       	jmp    0xca
  34:	e8 78 0e c3 07       	call   0x7c30eb1
  39:	41 89 c6             	mov    %eax,%r14d
  3c:	31 ff                	xor    %edi,%edi
  3e:	89 c6                	mov    %eax,%esi