------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/block-group.c:4141 at do_chunk_alloc fs/btrfs/block-group.c:4141 [inline], CPU#1: kworker/u8:3/12479
WARNING: fs/btrfs/block-group.c:4141 at btrfs_chunk_alloc+0x1029/0x15f0 fs/btrfs/block-group.c:4382, CPU#1: kworker/u8:3/12479
Modules linked in:
CPU: 1 UID: 0 PID: 12479 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:4141 [inline]
RIP: 0010:btrfs_chunk_alloc+0x102b/0x15f0 fs/btrfs/block-group.c:4382
Code: cb 34 bb fd e9 6d 01 00 00 e8 91 30 a0 fd 84 c0 74 22 e8 b8 34 bb fd e9 5a 01 00 00 e8 ae 34 bb fd 48 8d 3d 37 67 6a 0b 89 de <67> 48 0f b9 3a e9 b3 fc ff ff e8 b6 0a 1b 07 41 89 c6 31 ff 89 c6
RSP: 0018:ffffc900048776d0 EFLAGS: 00010293
RAX: ffffffff84094d42 RBX: ffffffffffffffe4 RCX: ffff888037f20000
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff8f73b480
RBP: 0000000000000000 R08: ffff888037f20000 R09: 0000000000000003
R10: 0000000000000100 R11: 00000000fffffffb R12: 1ffff1100c4f061e
R13: ffff888073117140 R14: ffff88805fc84001 R15: ffff888036c04800
FS:  0000000000000000(0000) GS:ffff888126432000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f5feff8 CR3: 00000000296c6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 flush_space+0x353/0xd80 fs/btrfs/space-info.c:896
 do_async_reclaim_metadata_space+0x411/0x970 fs/btrfs/space-info.c:1187
 btrfs_async_reclaim_metadata_space+0x89/0xe0 fs/btrfs/space-info.c:1254
 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:	cb                   	lret
   1:	34 bb                	xor    $0xbb,%al
   3:	fd                   	std
   4:	e9 6d 01 00 00       	jmp    0x176
   9:	e8 91 30 a0 fd       	call   0xfda0309f
   e:	84 c0                	test   %al,%al
  10:	74 22                	je     0x34
  12:	e8 b8 34 bb fd       	call   0xfdbb34cf
  17:	e9 5a 01 00 00       	jmp    0x176
  1c:	e8 ae 34 bb fd       	call   0xfdbb34cf
  21:	48 8d 3d 37 67 6a 0b 	lea    0xb6a6737(%rip),%rdi        # 0xb6a675f
  28:	89 de                	mov    %ebx,%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 b3 fc ff ff       	jmp    0xfffffce7
  34:	e8 b6 0a 1b 07       	call   0x71b0aef
  39:	41 89 c6             	mov    %eax,%r14d
  3c:	31 ff                	xor    %edi,%edi
  3e:	89 c6                	mov    %eax,%esi