Re: [Adeos-main] adeos i386 and ppc patches forward ported to 2.6.13

[Stelian Pop <stelian.pop@domain.hid>]

On Wed, Aug 31, 2005 at 07:37:33PM +0200, Philippe Gerum wrote:

> >However, I had to modify the ADEOS_PREEMPT_RT definition to:
> >+config ADEOS_PREEMPT_RT
> >+       def_bool PREEMPT_VOLUNTARY || PREEMPT_DESKTOP || PREEMPT_RT
> >+
> >(removed the PREEMPT_NONE from the def_bool definition) in order to make
> >it build on a regular, non PREEMPT_RT kernel (or else the compilation
> >would fail on a raw_spinlock_t undefined error). I think this problem
> >exists in the 2.6.12 patch as well.
> >
> 
> Ok. Looks like time has come to upgrade the combined Adeos/PREEMPT_RT patch 
> to
> -rt1 in order to fix the issues brought since 0.7.44, I guess.

How does this relate to the above ? I worked on the _plain_ adeos 
patch, not the combo rt one. That being said, the plain adeos patch
does contain some PREEMPT_RT bits - and those are the ones causing the
problems.

> >The ppc patch was a bit more tricky, but I think I got all of it right.
> >It works ok most of the time (RTAI fusion testsuite passes for example -
> >on a G4 Powerbook), but it hangs the machine hard sometimes. I am not
> >sure if the problem is due to the port or if it is present in the 2.6.10
> >version as well.
> >
> 
> I had a report about issues involving insufficiently protected
> get_mmu_context/destroy_context calls on the RTAI mailing list with
> 2.6.10-r8c1; I'm currently checking the proposed fix that has been sent to 
> me
> on a mpc8541. If this works, then maybe this would solve the issue you 
> mention
> too; hopefully.

I suppose you're talking about:
https://mail.rtai.org/pipermail/rtai/2005-August/012841.html

I'll try that patch too tomorrow and will let you know if it does
fix my hangs.

> >The two patches are at:
> >	http://www.popies.net/tmp/adeos-linux-2.6.13-i386-r13c1.patch
> >	http://www.popies.net/tmp/adeos-linux-2.6.13-ppc-r8c2.patch
> >
> 
> I've picked them; they likely won't reach the CVS or the DL area until 
> next week
> since I'm temporarily behind some paranoid firewall though.

np.

Thanks.

Stelian.
-- 
Stelian Pop <stelian.pop@domain.hid>
Alcove - http://www.alcove.com