Following up on this issue, the library compiled with VC 2011 beta doesn’t 
exhibit the issue so it has to be related to MinGW or something. I’m definitely 
not an expert in the area but if somebody have weird multi thread behavior on 
Windows and knows how to fix it with the MinGW build, we’d be glad to hear :)

From: [email protected] 
[mailto:[email protected]] On Behalf Of Dominique Prunier
Sent: Thursday, April 26, 2012 2:51 PM
To: FastBit Users
Subject: [FastBit-users] Windows / MinGW random crash with concurrent queries

Hey John,

I’m currently stress testing our FastBit implem and we found a strange issue 
with Windows MinGW build and concurrency.
It seems that FastBit works perfectly fine in a single thread application but 
almost systematically crashes when i run concurrent queries.

This issue doesn’t exists in Linux so i’m starting to think that it could be 
related either to the pthread port or the windows specifics (compilation, ...).
Did you have some use case involving concurrency on Windows ? Would you mind 
sharing a 64bits fastbit.dll (1.3.0) built with VC to see if i can reproduce 
the issue ?

Thanks,

Dominique Prunier
 APG Lead Developper
[cid:[email protected]]
 4388, rue Saint-Denis
 Bureau 309
 Montreal (Quebec)  H2J 2L1
 Tel. +1 514-842-6767  x310
 Fax +1 514-842-3989
 [email protected]<mailto:[email protected]>
 www.watch4net.com<http://www.watch4net.com/>

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