[Xenomai] Support of Beagleboard xm rev C on 3.14-ipipe

Arnaud Degroote arnaud.degroote at isae.fr
Mon Jun 30 11:13:10 CEST 2014


On 30/Jun - 10:59, Gilles Chanteperdrix wrote:
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> On 06/30/2014 10:26 AM, Arnaud Degroote wrote:
> > On 27/Jun - 18:27, Gilles Chanteperdrix wrote:
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> >> On 06/27/2014 09:22 AM, Arnaud Degroote wrote:
> >>> On 26/Jun - 19:27, Gilles Chanteperdrix wrote:
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> >>>> 
> >>>> On 06/26/2014 01:19 PM, Arnaud Degroote wrote:
> >>>>> On 26/Jun - 13:08, Gilles Chanteperdrix wrote:
> >>>>>> switchtest is another story. Does switchtest hang, or
> >>>>>> does the system completely freeze?
> >>>>> 
> >>>>> switchtest hangs, but the system is still responsive. I
> >>>>> can ctrl-c it and restart it. On C-c, it prints "properly"
> >>>>> a number of ctx switches done (which is far from other
> >>>>> "normal" values).
> >>>>> 
> >>>> You mean it is as if switchtest had continued switching
> >>>> contexts but had not printed anything? Do you see counters
> >>>> incrementing in /proc/xenomai/stat ?
> >>> 
> >>> I just meant that switchtest seems to respond properly to C-c,
> >>> even if it does not progress. But counters from
> >>> /proc/xenomai/stat stops incrementing at some point.
> >>> 
> > 
> > Related to my previous mail, I'm able to reduce threadspec to
> > 
> > rtk0 rtk0  rtup0
> > 
> > or
> > 
> > rtk0  rtup0 rtup0
> > 
> > Both demonstrates some quick hang. Other pattern may block too, I
> > don't try the full combinatorial.
> > 
> Could you test rtk0 alone?
> 
> It would mean there is an issue with the context switch. Are you
> running with the xenomai git?

It fails with 'rtk0 rtk0 rtk0' (really quickly). 
With 'rtk0 rtk0' it seems to work.

I'm using xenomai-2.6 git (4eb593df1eb89a47f1bc3423cea44c345d22ee3e). 
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