BTRFS error (device loop0): failed to run delayed ref for logical 5386240 num_bytes 1052672 type 178 action 1 ref_mod 1: -2
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BTRFS: Transaction aborted (error -2)
WARNING: fs/btrfs/extent-tree.c:2192 at btrfs_run_delayed_refs+0x30b/0x3b0 fs/btrfs/extent-tree.c:2192, CPU#0: syz.0.0/5318
Modules linked in:
CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 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
RIP: 0010:btrfs_run_delayed_refs+0x30e/0x3b0 fs/btrfs/extent-tree.c:2192
Code: 85 e4 75 07 e8 13 d3 e0 fd eb 7a e8 dc d6 c5 fd 84 c0 74 20 e8 03 d3 e0 fd eb 6a e8 fc d2 e0 fd 48 8d 3d e5 e5 35 0c 44 89 fe <67> 48 0f b9 3a e9 0b ff ff ff e8 c3 b1 ca 07 41 89 c4 31 ff 89 c6
RSP: 0018:ffffc9000f737958 EFLAGS: 00010283
RAX: ffffffff83e4d624 RBX: ffff888047ab4128 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 00000000fffffffe RDI: ffffffff901abc10
RBP: 0000000000000000 R08: ffff88801cf624c0 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000002 R12: ffff888023e0c001
R13: ffff888012667000 R14: dffffc0000000000 R15: 00000000fffffffe
FS:  00007f9a194286c0(0000) GS:ffff88808ca58000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000119de000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_commit_transaction+0x29a/0x31a0 fs/btrfs/transaction.c:2238
 btrfs_ioctl_set_fslabel+0x375/0x4f0 fs/btrfs/ioctl.c:4049
 btrfs_ioctl+0x9f2/0xd00 fs/btrfs/ioctl.c:5125
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a1859c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9a19427fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9a18816090 RCX: 00007f9a1859c799
RDX: 00002000000001c0 RSI: 0000000041009432 RDI: 0000000000000009
RBP: 00007f9a18632bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9a18816128 R14: 00007f9a18816090 R15: 00007ffe26b6b768
 </TASK>
----------------
Code disassembly (best guess):
   0:	85 e4                	test   %esp,%esp
   2:	75 07                	jne    0xb
   4:	e8 13 d3 e0 fd       	call   0xfde0d31c
   9:	eb 7a                	jmp    0x85
   b:	e8 dc d6 c5 fd       	call   0xfdc5d6ec
  10:	84 c0                	test   %al,%al
  12:	74 20                	je     0x34
  14:	e8 03 d3 e0 fd       	call   0xfde0d31c
  19:	eb 6a                	jmp    0x85
  1b:	e8 fc d2 e0 fd       	call   0xfde0d31c
  20:	48 8d 3d e5 e5 35 0c 	lea    0xc35e5e5(%rip),%rdi        # 0xc35e60c
  27:	44 89 fe             	mov    %r15d,%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 0b ff ff ff       	jmp    0xffffff3f
  34:	e8 c3 b1 ca 07       	call   0x7cab1fc
  39:	41 89 c4             	mov    %eax,%r12d
  3c:	31 ff                	xor    %edi,%edi
  3e:	89 c6                	mov    %eax,%esi