safknwgmail.com
Date: Thu Jan 15 2009 - 08:16:52 CST

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On Jan 14, 2009 9:40pm, Miguel Cardenas <renito73gmail.com> wrote:
> Hi
>
>
>
> I'm using /MT (LIBCMT.lib?) and it is multi-threaded since all my
>
> multi-thread code is working. LIBCMTD.lib is ignored because it is
indicated
>
> in a post at MySQL forums "
>
> http://forums.mysql.com/read.php?45,49606,49606#msg-49606" and anyway
>
> applications do not compile if not ignored because lots of duplicated
>
> symbols at link time.
>
>
>
> The issue is like this (as accurate as I remember) according the debugger
>
> call stack:
>
>
>
> 1) Call mysql_real_connect()
>
>
>
> 2) mysql_real_connect() calls a shared memory request function
>
>
>
> 3) the shared memory request fails in a internal strcpy() (asm, not source
>
> available) because a memory violation trying to acces 0x00000000
>
>
>
> Note these conditions:
>
> - The program fails inside VC++ 2008 express debug session
>
> - The program runs perfect without debug session or called directly by
user
>
> - I'm programming inside VirtualBox/WinXP
>
>
>
> Now I don't know if this problem is related to the VC++ debugger that
fails
>
> with certain condition of the MySQL client library or the VirtualBox
manages
>
> shared memory in a different way than a real computer.
>
>
>
> I emphasize that my program works perfect with Linux, FreeBSD and Solaris,
>
> even Windows if not run in a debug session, and the problem arises inside
>
> the MySQL library, not in the MySQL code but inside the shared memory
>
> function it calls.
>
>
>
> I hope this could help to get an idea
>

I suggest you to check bug list if you don't found one than create one.

>
>
> Regards,
>
> Miguel
>

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