Re: [Xenomai-help] Hang at glibc time() function call

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

Petr Cervenka wrote:
> Hello, we have a problems with hanging of our real-time application.
> In fact, the computer stops to respond totally. I succeeded to find
> the exact hang position in couple of our tasks (but not all of them)
> by setting of some digital outputs of HW device: 1) The most
> real-time task with the highest priority is still running as it
> should be (100us period). 2) Some of the tasks are in "sleep" state.
> They are waiting on some event or timeout. 3) One low priority task
> seems to be blocked at glibc time() function call.
> 
> But I would like to know if it is the source of the problem or only a
> consequent. I will try to replace the time() function call with
> rt_timer_read(), but couldn't be the problem elsewhere?
> 
> Configuration: Athlon XP 4600+ linux-2.6.26.3 xenomai-2.4.5 + patch
> for proper queue deletion

Could not it be that the highest priority task is using all the CPU?

-- 
                                                 Gilles.