[PlanetCCRMA] 2.6.7-1.437.1.11.rhfc2.ccrma crashes

Fri Nov 5 13:41:01 2004

On Fri, 2004-11-05 at 13:06, Mark Knecht wrote:
> Fernando,
>    I think it makes sense to try yours out since it would be better
> for Jacob and the community to hear that this works instead of my
> customized thing. However, as you correctly remember,  to get good
> performance on my laptop I had to eliminate almost all of the ACPI
> features in the kernel. (Don't ask me why.)  Since they are probably
> mostly on in yours can I do something like ACPI=off from the grub
> config file? 

Yes, "acpi=off" will turn off acpi. But who knows, maybe that is not
enough in your case. 

> That's probably more radical than what I actually ended
> up running myself, but it may be necessary with my machine.
> 
>    I'll be happy to try it out either late this evening or sometime
> early tomorrow.
> 
>    Any specific instructions on enabling low latency? Or is it just on
> by default?

I don't remember if it is on by default on that particular kernel. There
have been so many changes... The options for enabling preemption (which
is what makes it better from the point of view of latency) are in
/proc/sys/kernel/, I think. 

-- Fernando

> On 05 Nov 2004 12:45:13 -0800, Fernando Pablo Lopez-Lezcano
> <nando@ccrma.stanford.edu> wrote:
> > On Fri, 2004-11-05 at 07:03, Mark Knecht wrote:
> > > On Fri, 5 Nov 2004 14:32:35 +0100 (CET), Jakub Niewiarowski
> > > <jniewiar@st.swps.edu.pl> wrote:
> > > > Hi,
> > > > how can I get your kernel (2.6.9-rc2-mm4-VP-S7-UMP-noACPI)?
> > > > And, what is the architecture that it's tuned for?
> > > > Qba
> > > >
> > >
> > > My kernel is built from kernel.org source with patches applied and
> > > then choices made using make menuconfig. I run it on a 3GHz P4 Mobile
> > > laptop (Compaq R3070us) and it's been very good to me. I run it under
> > > both Planet CCRMA/FC2 and Gentoo on the same laptop.
> > 
> > Hey Mark, maybe you could try out this kernel version from Planet Edge
> > and see if it works in your laptop:
> > 
> >   2.6.8.1-1.520.2vS7.ll.rhfc2.ccrma
> > (instead of 1vS7, which is the one that did not work)
> > 
> > It has the apic option for uniprocessor machines turned on, I think that
> > was the problem with your laptop that you had addressed with your custom
> > kernel. I created this a while back but never put it online...