Bug 49785 - TcpListener AcceptSocketAsync broken
Summary: TcpListener AcceptSocketAsync broken
Alias: None
Product: Class Libraries
Classification: Mono
Component: System ()
Version: 4.6.0 (C8)
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2016-12-13 01:56 UTC by su21
Modified: 2016-12-14 06:32 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

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Description su21 2016-12-13 01:56:41 UTC
➜  tcplistener mono --version
Mono JIT compiler version 4.6.2 (Stable Mon Nov 14 10:53:45 UTC 2016)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           __thread
	SIGSEGV:       altstack
	Notifications: epoll
	Architecture:  amd64
	Disabled:      none
	Misc:          softdebug
	LLVM:          supported, not enabled.
	GC:            sgen

using System;
using System.Diagnostics;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;

namespace TCPListenerAccept
	class MainClass
		public static void Main(string[] args)
			var hostEntry = Dns.GetHostEntry("");
			TcpListener ln = null;
			foreach (var addr in hostEntry.AddressList)
				ln = new TcpListener(addr, 8080);
			var t = Task.Factory.StartNew(async () =>
				while (true)
					var socket = await ln.AcceptSocketAsync();
					Debug.Print("accept socket {0}", socket.RemoteEndPoint);
			Console.WriteLine("Hello World!");