------------[ cut here ]------------
btrfs_abort_should_print_stack(__error)
WARNING: fs/btrfs/block-group.c:2939 at btrfs_create_pending_block_groups+0x13d8/0x15e0 fs/btrfs/block-group.c:2939, CPU#0: kworker/u8:5/137
Modules linked in:
CPU: 0 UID: 0 PID: 137 Comm: kworker/u8:5 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:btrfs_create_pending_block_groups+0x13d8/0x15e0 fs/btrfs/block-group.c:2939
Code: 83 fb f4 75 63 e8 f8 a8 8f fd eb 65 e8 f1 a8 8f fd eb 1a e8 ea a8 8f fd 49 be 00 00 00 00 00 fc ff df eb 09 e8 d9 a8 8f fd 90 <0f> 0b 90 f7 db e9 47 fd ff ff e8 c9 a8 8f fd eb 10 e8 c2 a8 8f fd
RSP: 0018:ffffc90002e37540 EFLAGS: 00010293
RAX: ffffffff843759b7 RBX: 00000000ffffffe4 RCX: ffff88801fb18000
RDX: 0000000000000000 RSI: ffffffff8f1f9c90 RDI: 00000000ffffffe4
RBP: ffffc90002e377c0 R08: ffff88801fb18000 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: ffff88805141ee20
R13: fffff520005c6ec4 R14: dffffc0000000000 R15: ffff88805141efe8
FS:  0000000000000000(0000) GS:ffff888124f55000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3ec3db84ac CR3: 000000006824d000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __btrfs_end_transaction+0x140/0x640 fs/btrfs/transaction.c:1092
 flush_space+0x3e9/0xde0 fs/btrfs/space-info.c:912
 do_async_reclaim_metadata_space+0x3e8/0x940 fs/btrfs/space-info.c:1211
 btrfs_async_reclaim_metadata_space+0x89/0xe0 fs/btrfs/space-info.c:1278
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>