[PlanetCCRMANews] Re: [PlanetCCRMA] fedora core 5 support: a start (and fc4)

Fernando Lopez-Lezcano planetccrma@ccrma.stanford.edu
Thu, 04 May 2006 14:20:13 -0700

On Tue, 2006-05-02 at 11:43 -0700, Fernando Lopez-Lezcano wrote:
> Hi all and thanks for the patience :-)

So... same kernels are now available for fc4 in the "planetedge"
repository (ie: add a line with planetedge instead of planetcore
in /etc/apt/sources.list.d/planetccrma.list)

Then "apt-get update" and...

> To install the latest and greatest kernel:
>   apt-get install planetccrma-core-edge
> or
>   apt-get install planetccrma-core-edge-smp
> (for a multiprocessor kernel)
> This will get you (today) plus Ingo Molnar's realtime
> preemption patch 2.6.16-rt17 configured as PREEMPT_RT (the best option
> but the most "bleeding edge"). This was all done on top of Fedora's
> 1.2080 kernel - a pain because I had to tweak Ingo's patch a bit, and
> hopefully that was done correctly. It should have the good side effect
> of being closer to the configuration that Fedora chooses, that is,
> should be a little bit more compatible with FC than plain vanilla
> 2.6.16.x (as I used to do before). Remains to be seen how long I'll be
> able to do this. One more difference (for gurus), I have built these
> kernels with 4KSTACKS=n - there were a couple of stack overflows with
> that on and the realtime preempt patch. 
> A notch down in performance is:
>   apt-get install planetccrma-core
> or
>   apt-get install planetccrma-core-smp
> That will get you the same thing as the previous one but with Ingo's
> patch configured as PREEMPT_DESKTOP. It may help when PREEMPT_RT does
> not work on your hardware. 
> Both selections will bring in some additional goodies as usual. Those
> include 1.0.11 final ALSA kernel modules, ALSA firmware, tools and oss
> packages, the rtirq script that optimizes IRQ priorities for best
> realtime sound performance and a patched PAM that will give you complete
> access to SCHED_FIFO for best performance, and the ability to hang the
> machine as well :-)
> Current kernels are named:
> kernel-2.6.16-1.2080.13.rrt.rhfc4.ccrma.i686.rpm
> for the PREEMPT_RT one, and
> kernel-2.6.16-1.2080.13.rdt.rhfc4.ccrma.i686.rpm
> for the PREEMPT_DESKTOP kernel
> (and the smp and i586 variations as well)

-- Fernando