[Paraview-developers] [EXTERNAL] ParaView Windows Socket Issue

[Scott, W Alan]

Timing?  Could you have hardware that is becoming flaky?  Try on another box?

If you want to send me bits, I could give it a try?

Alan

From: Paraview-developers [mailto:paraview-developers-bounces at paraview.org] On Behalf Of Utkarsh Ayachit
Sent: Monday, May 12, 2014 3:11 PM
To: ParaView Developers
Subject: [EXTERNAL] [Paraview-developers] ParaView Windows Socket Issue

I am running into a strange issue with sockets on Windows. Here are the symptoms:

+ VS9 (VS2008), 64 bit, Windows 7
+ Fails only with Release or RelWithDebInfo builds (never in Debug)
+ client-server tests fail when receiving large chunks of data (although sometimes it happens for small chunks too)
+ "recv" call fails with error WSAEFAULT (most of the time). I am assured that the corresponding "send" does indeed happen. In other words, not a race condition or some other deadlock.
+ I can overcome the problem by simply doing a memset(buffer, 0, lengthofbuffer) before the "recv" call.

I already tried chunking the recv is 8KB chunks, doesn't help. Has anyone ever seen something like this, or has any ideas that could work?

Thanks
Utkarsh
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