TousakaRin commented on issue #3068:
URL: https://github.com/apache/brpc/issues/3068#issuecomment-3222328792

   > > 按说异步RPC也没问题,只是b、c、d必须保证在a之前结束。
   > 
   > 是的,b、c、d肯定是保证在a之前返回的
   
   比较常见的case是,a 的回调中发起 异步rpc b c d 之后没有 join b c d, 而是调用了 run->done, 在 run -> 
done 中会认为所有的 sub rpc 已经完成并 destroy span, 从而导致 b c d完成之后操作 dangling pointer
   可以check下代码里有没有这种case


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