loop0: detected capacity change from 0 to 32768
BTRFS: device fsid 14d642db-7b15-43e4-81e6-4b8fac6a25f8 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5376)
BTRFS info (device loop0): first mount of filesystem 14d642db-7b15-43e4-81e6-4b8fac6a25f8
BTRFS info (device loop0): using blake2b checksum algorithm
BTRFS info (device loop0): enabling ssd optimizations
BTRFS info (device loop0): turning on async discard
BTRFS info (device loop0): enabling free space tree
BTRFS info (device loop0): use zstd compression, level 3
BTRFS info (device loop0): scrub: started on devid 1
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/block-group.c:2925 at btrfs_create_pending_block_groups+0x1616/0x1b40 fs/btrfs/block-group.c:2925, CPU#0: syz.0.0/5376
Modules linked in:
CPU: 0 UID: 0 PID: 5376 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_create_pending_block_groups+0x1618/0x1b40 fs/btrfs/block-group.c:2925
Code: 9e 6c ae fd e9 a6 03 00 00 e8 54 78 93 fd 84 c0 74 27 e8 8b 6c ae fd e9 93 03 00 00 e8 81 6c ae fd 48 8d 3d fa 2c 23 0c 89 de <67> 48 0f b9 3a 4c 8b 6c 24 20 e9 22 fc ff ff e8 44 ec 92 07 41 89
RSP: 0018:ffffc900072f7780 EFLAGS: 00010283
RAX: ffffffff84175e2f RBX: 00000000ffffffe4 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 00000000ffffffe4 RDI: ffffffff903a8b30
RBP: ffffc900072f79e8 R08: ffff88803f97a500 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000002 R12: dffffc0000000000
R13: fffff52000e5ef0c R14: 0000000000000000 R15: ffff888038dcc001
FS:  00007fd9c963f6c0(0000) GS:ffff88808c885000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb0bb75c000 CR3: 0000000043384000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __btrfs_end_transaction+0x140/0x650 fs/btrfs/transaction.c:1091
 btrfs_inc_block_group_ro+0x647/0x7c0 fs/btrfs/block-group.c:3219
 scrub_enumerate_chunks+0x810/0x13d0 fs/btrfs/scrub.c:2820
 btrfs_scrub_dev+0x6cb/0xff0 fs/btrfs/scrub.c:3201
 btrfs_ioctl_scrub+0x243/0x4a0 fs/btrfs/ioctl.c:3040
 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+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd9c879cdd9
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:00007fd9c963efe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd9c8a15fa0 RCX: 00007fd9c879cdd9
RDX: 0000200000000000 RSI: 00000000c400941b RDI: 0000000000000004
RBP: 00007fd9c8832d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd9c8a16038 R14: 00007fd9c8a15fa0 R15: 00007fff21fbe558
 </TASK>
----------------
Code disassembly (best guess):
   0:	9e                   	sahf
   1:	6c                   	insb   (%dx),%es:(%rdi)
   2:	ae                   	scas   %es:(%rdi),%al
   3:	fd                   	std
   4:	e9 a6 03 00 00       	jmp    0x3af
   9:	e8 54 78 93 fd       	call   0xfd937862
   e:	84 c0                	test   %al,%al
  10:	74 27                	je     0x39
  12:	e8 8b 6c ae fd       	call   0xfdae6ca2
  17:	e9 93 03 00 00       	jmp    0x3af
  1c:	e8 81 6c ae fd       	call   0xfdae6ca2
  21:	48 8d 3d fa 2c 23 0c 	lea    0xc232cfa(%rip),%rdi        # 0xc232d22
  28:	89 de                	mov    %ebx,%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	4c 8b 6c 24 20       	mov    0x20(%rsp),%r13
  34:	e9 22 fc ff ff       	jmp    0xfffffc5b
  39:	e8 44 ec 92 07       	call   0x792ec82
  3e:	41                   	rex.B
  3f:	89                   	.byte 0x89