[Xenomai] Xenomai on Atmel SAMA5D3 with a 3.14 kernel

Maxime Ripard maxime.ripard at free-electrons.com
Wed Jun 25 19:14:23 CEST 2014

On Tue, Jun 24, 2014 at 08:13:59AM +0200, Gilles Chanteperdrix wrote:
> >> After fixing the irq controller to work on the AIC5, and
> >> disabling the pic muting, I get almost 100% of the time a system
> >> freeze when running: 
> >> http://git.free-electrons.com/training-materials/tree/lab-data/realtime/rttest/data/rttest.c
> >
> >>  The TCB timer is still ticking, at a rate around 1Hz, while,
> >> when the system hangs, the PIT interrupt isn't firing anymore
> >> (which explains the freeze). So there's probably something wrong
> >> related to the ipipe I guess, or the interrupt being masked and
> >> not unmasked at some point.
> > 
> > Well: - the existing at91 I test also use a PIT and they do not
> > hang - if you disabled the pic muting, noone is disabling the PIT
> > interrupt.
> > 
> > So, I would suggest looking carefully at the sama5 code.
> You could also post this code for review, BTW. Unless I am mistaken
> about your company, you do not want to keep it secret anyway ;-)

Yeah, I was willing to first make it work, but the final plan was of
course to submit it.

I'll clean that up and post it then.


Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
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