[PlanetCCRMA] fc6: core components available for testing

Hector Centeno hcengar@gmail.com
Wed Mar 7 07:50:02 2007

Thank you a lot Fernando!

I just installed the new kernel-rt and rebuilt the needed modules for
my laptop's hardware and it seems to be working fine. The only problem
I noticed is that I lost battery monitoring (it works using the FC6
stock kernel) and the processor frequency applet shows the CPU is set
to it's lowest speed at boot so I have to manually change the Governor
to Performance. Also if I don't change the CPU speed governor it
starts auto-regulating the speed according to CPU load even whit the
laptop plugged to the power. Is the kernel-rt lacking some power
management? Do I need to build a driver? Thanks in advance for any
ideas anyone has to share.



On 3/5/07, Fernando Lopez-Lezcano <nando@ccrma.stanford.edu> wrote:
> Hi all...
> I've just released the "core" components for Fedora Core 6[1]. That
> includes an Ingo Molnar supercharged kernel (the package name is
> "kernel-rt" to differentiate it from the normal kernel), the irq
> ordering rtirq script, pam packages that allow any user to use realtime
> scheduling without editing configuration files[2] and a planetccrma-core
> package that should pull in all other packages in one yum install
> command. All available for i386 and x86_64.
> YMMV...
> The kernel is only built for i686 architectures in the case of the 32
> bit distro, and there is no longer an -smp version (as has been the case
> with the stock Fedora kernels in fc6). I have built them with PREEMPT_RT
> only, so the install incantation is just:
>   yum install planetccrma-core
> Obviously nobody gives any assurances that you will end up with a
> bootable rt kernel if you install this :-) It has been working fine in
> the machines I tested, but those are not that many - but I have not seen
> recent updates from Ingo so I presume it is "stable" (sort of).
> Additional jack-audio-connection-kit packages have been released as well
> that run jackd with the proper realtime priority (60 by default) so that
> the jackd process priorities interleave correctly with the rest of the
> realtime process priorities as tuned by rtirq.
> Enjoy! (if it works ;-)
> -- Fernando
> [1] had I waited more I could have released this together with the
> official release of fc7, oh well... time flies...
> [2] and allows any user to hang the machine with a simple program, you
> have been warned...
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