------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/block-group.c:4011 at do_chunk_alloc fs/btrfs/block-group.c:4011 [inline], CPU#0: kworker/u8:26/14918
WARNING: fs/btrfs/block-group.c:4011 at btrfs_chunk_alloc+0x101d/0x15e0 fs/btrfs/block-group.c:4252, CPU#0: kworker/u8:26/14918
Modules linked in:
CPU: 0 UID: 0 PID: 14918 Comm: kworker/u8:26 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:4011 [inline]
RIP: 0010:btrfs_chunk_alloc+0x101f/0x15e0 fs/btrfs/block-group.c:4252
Code: 57 7b c9 fd e9 6d 01 00 00 e8 4d 8f af fd 84 c0 74 22 e8 44 7b c9 fd e9 5a 01 00 00 e8 3a 7b c9 fd 48 8d 3d e3 9a b4 0b 89 de <67> 48 0f b9 3a e9 b3 fc ff ff e8 e2 08 67 07 41 89 c6 31 ff 89 c6
RSP: 0018:ffffc9001303f7f0 EFLAGS: 00010293
RAX: ffffffff83f79e66 RBX: ffffffffffffffe4 RCX: ffff88802e720000
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff8fac3950
RBP: 0000000000000000 R08: ffff88802e720000 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: 1ffff110053c3d16
R13: ffff88804fe933d8 R14: ffff88807dff4001 R15: ffff8880604a8000
FS:  0000000000000000(0000) GS:ffff888125bf9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5f1bdbf000 CR3: 000000004c5b6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 flush_space+0x355/0xd20 fs/btrfs/space-info.c:882
 do_async_reclaim_metadata_space+0x11e/0x350 fs/btrfs/space-info.c:1173
 btrfs_async_reclaim_metadata_space+0x89/0xe0 fs/btrfs/space-info.c:1240
 process_one_work+0x93a/0x15a0 kernel/workqueue.c:3279
 process_scheduled_works kernel/workqueue.c:3362 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3443
 kthread+0x389/0x480 kernel/kthread.c:467
 ret_from_fork+0x510/0xa50 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:	57                   	push   %rdi
   1:	7b c9                	jnp    0xffffffcc
   3:	fd                   	std
   4:	e9 6d 01 00 00       	jmp    0x176
   9:	e8 4d 8f af fd       	call   0xfdaf8f5b
   e:	84 c0                	test   %al,%al
  10:	74 22                	je     0x34
  12:	e8 44 7b c9 fd       	call   0xfdc97b5b
  17:	e9 5a 01 00 00       	jmp    0x176
  1c:	e8 3a 7b c9 fd       	call   0xfdc97b5b
  21:	48 8d 3d e3 9a b4 0b 	lea    0xbb49ae3(%rip),%rdi        # 0xbb49b0b
  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 e2 08 67 07       	call   0x767091b
  39:	41 89 c6             	mov    %eax,%r14d
  3c:	31 ff                	xor    %edi,%edi
  3e:	89 c6                	mov    %eax,%esi