memory miuxup was the problem. while libssh,the application and libcurl were
compiled using /MDd, libssl was compiled using /MT .Thanks for the pointer

On Wed, Sep 16, 2009 at 11:36 PM, Daniel Stenberg <daniel_at_haxx.se> wrote:

> On Wed, 16 Sep 2009, Gokul Krishna wrote:
>
> i am running libcurl 7.19.3 compiled with openssl and libssh2 support on a
>> windows xp machine. i try to post a http request to a url and read the data
>> returned(binary data).
>>
>> The code seems to crash randomly in free(). i verified if both the CRT
>> versions are the same and both are using /MDd switch.
>>
>
> 99.9% of the times someone reports something like this the problems are
> outside of libcurl. It's either a memory system confusion/mixup (in
> windows), usage of SSL multi-threaded without mutex callbacks set or
> otherwise ruining memory from the app itself.
>
> If you build just a sample app from docs/examples/ and run it, does it
> crash too?
>
> --
>
> / daniel.haxx.se
>

-- 
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