Re: [Xenomai-core] rt_task_create() hangs ?

[Philippe Gerum <rpm@xenomai.org>]

On Wed, 2007-01-24 at 14:32 +0100, Steven Scholz wrote:
> Hi all,
> 
> we're doing the first steps with Xenomai and stumbled about some problems.
> 
> On our AT91RM9200 (adeos-ipipe-2.6.14-arm-1.5-04,
> ipipe-2.6.14-at91-1.5-04.patch) a simple application (that just creates and
> destroys two threads)
> 
> 	rt_task_create(&task_1,"task_1",0,50,0);
> 	rt_task_create(&task_2,"task_2",0,51,0);
> 	...
> 	rt_task_delete(&task_2);
> 	rt_task_delete(&task_1);
> 
> runs fine when started for the first time. But when started again it hangs
> in the rt_task_create() for the second task.
> Funny enough it all runs fine when we first delete task1 and then task2 ...
> 

Could you post the full source of your test app? It's impossible to
infere anything from this description without understanding who actually
does what in your app. TIA.

> On an x86 (adeos-ipipe-2.6.19-i386-1.6-03) the application runs fine. Either
> way.
> 
> We noticed that on the AT91RM9200 we don't see the
> 
> Xenomai: POSIX: destroyed thread c14a0320
> 
> message. Not even when running (and stopping) cyclictest. I suspect that
> this is leading to our problems.
> 

This message is not issued by the native Xenomai API, but by the POSIX
one, so those issues are not necessarily related.

> Any idea?
> 
> Thanks a million!
> 
> --
> Steven
> 
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-- 
Philippe.