我有一个 Windows 服务，除其他外，它使用 .NET System.Net.Sockets 库侦听来自远程设备的传入数据。下面的示例只有一台远程设备每 60 秒推送一次数据。
每隔一段时间，该服务就会停止，并且服务器的 Windows 日志中会出现一条消息（如下所示）。
The process was terminated due to an unhandled exception.
Exception Info: System.Net.Sockets.SocketException Stack:
at System.Net.Sockets.Socket.EndReceive(System.IAsyncResult)
at Uk.Co.RCID.MoteServer.Server.SocketListener.ReceiveCallback(System.IAsyncResult)
at System.Net.LazyAsyncResult.Complete(IntPtr)
at System.Net.ContextAwareResult.CompleteCallback(System.Object)
at System.Threading.ExecutionContext.runTryCode(System.Object)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode, CleanupCode, System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Net.ContextAwareResult.Complete(IntPtr) at System.Net.LazyAsyncResult.ProtectedInvokeCallback(System.Object, IntPtr)
at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
将此事件的时间与我的上一条日志语句进行匹配后，我发现当远程设备在短时间内连接到服务两次（通常每 60 秒连接一次以推送数据）时，就会发生此致命异常。这是系统崩溃前我的最后一条日志语句。
2011-05-20 13:39:19,545 [6] INFO Uk.Co.RCID.MoteServer.Server.SocketListener [(null)] - Waiting for a connection...
2011-05-20 13:39:19,545 …