------------[ 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#1: kworker/u8:25/6544
WARNING: fs/btrfs/block-group.c:4011 at btrfs_chunk_alloc+0x101d/0x15e0 fs/btrfs/block-group.c:4252, CPU#1: kworker/u8:25/6544
Modules linked in:
CPU: 1 UID: 0 PID: 6544 Comm: kworker/u8:25 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events_unbound btrfs_async_reclaim_data_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: c7 7a c9 fd e9 6d 01 00 00 e8 ad 8d af fd 84 c0 74 22 e8 b4 7a c9 fd e9 5a 01 00 00 e8 aa 7a c9 fd 48 8d 3d a3 aa b4 0b 89 de <67> 48 0f b9 3a e9 b3 fc ff ff e8 c2 43 67 07 41 89 c6 31 ff 89 c6
RSP: 0018:ffffc9001ab4f7f0 EFLAGS: 00010293
RAX: ffffffff83f79386 RBX: ffffffffffffffe4 RCX: ffff88802e618000
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff8fac3e30
RBP: 0000000000000000 R08: ffff88802e618000 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: 1ffff1100ad65d16
R13: ffff888077b0fbf0 R14: ffff8880279e4001 R15: ffff888022b62800
FS:  0000000000000000(0000) GS:ffff888125cf7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69ecda1000 CR3: 000000001f734000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 flush_space+0x355/0xd20 fs/btrfs/space-info.c:882
 do_async_reclaim_data_space+0x145/0x520 fs/btrfs/space-info.c:1409
 btrfs_async_reclaim_data_space+0x41/0x90 fs/btrfs/space-info.c:1473
 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:246
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	7a c9                	jp     0xffffffcb
   2:	fd                   	std
   3:	e9 6d 01 00 00       	jmp    0x175
   8:	e8 ad 8d af fd       	call   0xfdaf8dba
   d:	84 c0                	test   %al,%al
   f:	74 22                	je     0x33
  11:	e8 b4 7a c9 fd       	call   0xfdc97aca
  16:	e9 5a 01 00 00       	jmp    0x175
  1b:	e8 aa 7a c9 fd       	call   0xfdc97aca
  20:	48 8d 3d a3 aa b4 0b 	lea    0xbb4aaa3(%rip),%rdi        # 0xbb4aaca
  27:	89 de                	mov    %ebx,%esi
* 29:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2e:	e9 b3 fc ff ff       	jmp    0xfffffce6
  33:	e8 c2 43 67 07       	call   0x76743fa
  38:	41 89 c6             	mov    %eax,%r14d
  3b:	31 ff                	xor    %edi,%edi
  3d:	89 c6                	mov    %eax,%esi