Unrecoverable exception writing to socket closed from the other side

[tejainece]

I am using Dart VM version: 2.1.0 (Tue Nov 13 18:22:02 2018 +0100) on "windows_x64".

When socket.write is called on RawSocket after the other side has closed the connection (which we dont know about yet), the Dart SDK crashes with an unrecoverable exception.

Here is the message it outputs before it crashes:

Unhandled exception:
SocketException: Write failed (OS Error: Broken pipe, errno = 32), address = database.example.com, port = 62372
#0      _rootHandleUncaughtError.<anonymous closure> (dart:async/zone.dart:1112:29)
#1      _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#2      _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#3      _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#4      _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)

It however calls onError callback of listen method with the error before it crashes.

This is probably related to an old issue: #17468

There are also occurrences of the same issue in other packages: dartist/redis_client#67

[sortie]

Thanks for the report. I couldn't reproduce it on Linux with a simple program. I'll fire up a Windows environment and see if I can reproduce it there. Can you help me by sharing a small program that reproduces the issue?