Re: [Xenomai-help] Force switch back to primary domain

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Henri Roosen wrote:
> Ok, found some time to investigate the mutex problem we see on 2.5.1.
> 
> I managed to reproduce with a basic app that uses the same way of
> thread creation as we have in our app.
> Please find attached the basic app. Note, it runs fine on Xenomai
> 2.4.10. Fails on 2.5.1.
> 
> Also, the problem does not show when creating the threads with rt_task_create.
> 
> So the main question is, should it be possible to create threads with
> the clone() system call and then shadowing the threads into the
> Xenomai domain with rt_task_shadow()? And are we just lucky it runs
> this way in 2.4.10?

To get __thread working, I think you should pass CLONE_SETTLS to clone,
with something as the tls argument. But what to pass probably depends on
the internals of the glibc. I would also pass CLONE_THREAD, since you
want to create a thread in the same thread groups as other threads.


-- 
					    Gilles.