[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

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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