Threading on Fedora Core

[Dan Trainor]

Hello -

We've been investigating the scenario where a mutex is blocked or 
improperly blocked.

There is one processor on the system, a P4 3.0 w/HTT.

I didn't figure that it would be a case with Fedora Core itself, but 
like I said, we're running out of ideas, and we should at least check to 
make sure that this wasn't a known problem or even a known bug.

Thanks
-dant

linux user wrote:
> I've written some code that supports threads.  It's possible that there is
> an issue in the code that causes a mutex to be blocked, or there might be
> busy waiting threads.  Neither case is good.  Do you have the code in
> question?
> 
> How many processors on the system, and what type?
> 
> It's unlikely an issue with Fedora Core, and more likely an issue with the
> code.
> 
> 
> 
>>-----Original Message-----
>>From: fedora-list-bounces at redhat.com
>>[mailto:fedora-list-bounces at redhat.com]On Behalf Of Dan Trainor
>>Sent: Monday, May 23, 2005 2:16 PM
>>To: For users of Fedora Core releases
>>Subject: Threading on Fedora Core
>>
>>
>>Hello, all -
>>
>>I'm sorry that my question here is so broad, depending on many, many
>>factors and variables.  However, I'm kindof out of options here.
>>
>>We're developing a piece of software in-house that utilizes threading.
>>This software also implements SSL via OpenSSL for end-to-end TLSv1
>>security.  The encryption itself works well, but the threading does not.
>>  Every client that connects to this application, the time to process
>>goes up by about one second.
>>
>>I've managed to re-compile the openssl-0.9.7a-35 source RPM making it
>>explicitly compile in threaded support, un-installed the existing RPM,
>>and re-installed my custom RPM, but when running the test code listed in
>>OpenSSL's threads(3) man page to test for threads, we've seen that
>>threads are somehow disabled - even after rebuilding this RPM.  I'm
>>almost totally lost here, as I am not a programmer.
>>
>>I guess what I'm asking here is if anyone knows of any other issues that
>>Fedora Core has had with threading applications, or if these symptoms
>>are just the result of shotty coding on our side?  Has anyone ever ran
>>into any errors with threading on Fedora Core, specifically threading
>>with OpenSSL support?
>>
>>Thanks again for your time. Any kind of help at all would be great.
>>-dant
>>
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