Subj : Re: pthread_mutex_lock -> sem_unlink -> pthread_create?
To   : comp.programming.threads
From : loic-dev
Date : Tue Jun 21 2005 02:12 am

Hi Dan,

> I'm having a strange problem that I haven't been able to find a
> reference to on usenet or the web. A program of ours is experiencing
> very high load when processing very little network traffic. Attaching
> to one of the busy threads consistently gives backtraces like the one
> below. I don't understand why pthread_create is being called here. Is
> this normal behaviour from pthread_mutex_lock? Hundreds of threads are
> being created, according to the output of repeated ps, which clearly
> isn't right.
>
> I don't know whether this is a problem with the way we're using
> ZThread, a bug in ZThread, or a bug in glibc's pthread, and I'm at a
> brick wall now. Can anyone shed any light on this odd situation?

Unfortunately, I do not have any solution or hint to your problem. But
that's definitively not "normal".

Most of us aren't proficient in Zthreads enough... But if you could
provide us a minimal example showing up your issue, we could perhaps
help further. 


Regards, 
Loic.

.