repro for mono dns lookup crash results

gistfile1.txt

$ mono --debug test3.exe
Cannot handle address family 51520
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Net.Dns.GetHostByName_internal (string,string&,string[]&,string[]&) <IL 0x00010, 0xffffffff>
  at System.Net.Dns.GetHostByName (string) <IL 0x00018, 0x0004d>
  at System.Net.Dns.GetHostEntry (string) <IL 0x00062, 0x000a5>
  at StatsdClient.StatsdUDP.GetIpv4Address (string) <IL 0x00012, 0x0004f>
  at StatsdClient.StatsdUDP..ctor (string,int,int) <IL 0x0002c, 0x000f9>
  at StatsdClient.Metrics.CreateStatsD (StatsdClient.MetricsConfig) <IL 0x00036, 0x000d1>
  at StatsdClient.Metrics.Configure (StatsdClient.MetricsConfig) <IL 0x0003f, 0x000b3>
  at Tests.IPV4ParsingTests.Main (string[]) <IL 0x00014, 0x0008b>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) <IL 0x00060, 0xffffffff>

Native stacktrace:

        mono() [0x4b1fac]
        /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7ffa36754340]
        /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x39) [0x7ffa363b5cc9]
        /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7ffa363b90d8]
        mono() [0x629309]
        mono() [0x629517]
        mono() [0x6295c2]
        mono() [0x624c35]
        mono() [0x578b26]
        [0x408d3da0]

Debug info from gdb:


=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Aborted