[PlanetCCRMA] 3.0 rt kernel (rt18)

Fernando Lopez-Lezcano nando at ccrma.Stanford.EDU
Mon Oct 17 10:06:11 PDT 2011

On 10/17/2011 09:58 AM, Geoff King wrote:
> Hello,
> I've been using the fedora 15 default kernel and recently noticed that
> if I pass the kernel boot line nohz=off I get many fewer xruns.  I'm
> also using threadirqs.  See my post last week on ardour forums for more
> details if interested.  Search for nohz.
> Not sure I can use the rt kernel right now due to needing nvidia driver.

Yeah, that would be a problem, you would need to rebuild your own kernel 
with the small patch that allows rebuilding the nvidia glue code.

-- Fernando

> On Oct 17, 2011 10:03 AM, "Gareth Foster" <earthwormgaz at gmail.com
> <mailto:earthwormgaz at gmail.com>> wrote:
>     The default kernel on F15 was unusable with Hydrogen for me, XRUNS
>     galore, had to go crawling back to OSX.
>     On 17 October 2011 15:01, Mark Knoop <mark at opus11.net
>     <mailto:mark at opus11.net>> wrote:
>         At 13:45 on 13 Oct 2011, Fernando Lopez-Lezcano wrote:
>         >Hi, I just released preliminary packages of 3.0.6 + the latest
>         rt18...
>         >they are available for fc15 on the planetcore-testing repository.
>         >
>         >Usual caveats apply, not much testing done. Useful feedback would be
>         >welcome in the rt kernel mailing list.
>         Many thanks for this Fernando. I've not had a chance to do any real
>         testing yet, but the kernel boots with no problems and
>         everything seems
>         to work.
>         A quick run of jack exposed quite a few xruns, many *more* than the
>         default kernel, but perhaps I need to adjust a few parameters. (Does
>         the --realtime-priority need to be set higher?)
>         Mark
>         --
>         Mark Knoop

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