Re: Low-latency kernel
On Sat, Jun 23, 2007 at 05:01:00PM +0200, Lars Luthman wrote:
> > Hi Arnout,
> > |--==> Arnout Engelen writes:
> >
> > AE> Hi!
> > AE> One of the first things anyone doing multimedia stuff with Debian is
> > AE> going to want is a kernel that's configured for low latency.
> >
> > AE> What is currently the recommended way of configuring/installing such a
> > AE> kernel? Might be a good idea to put (a link to) some documentation
> > AE> about this somewhere on http://wiki.debian.org/DebianMultimedia
> >
> > AE> Ubuntu has a 'linux-image-lowlatency' package providing a readily
> > AE> configured and built kernel suitable for multimedia work.
> >
> > As far as I know the 'linux-image-lowlatency' kernel has not been
> > patched with the realtime-preemption patch from Ingo Molnar.
> >
> > AE> I haven't
> > AE> checked, but I expect 64 Studio and Studio To Go! to have done similar
> > AE> work. It might be worthwhile to compare notes and perhaps provide such
> > AE> a package for Debian also.
> >
> > Both these distros come with a realtime-patched kernel, for 64 Studio
> > the package is available here:
> >
> > deb http://apt.64studio.com/64studio/testing 64studio main
> > http://apt.64studio.com/64studio/testing/pool/main/l/linux-2.6/
>
> Is there any particular reason (other than lack of time and manpower) for
> not having an RT-patched kernel package in standard Debian unstable?
> Would it cause any problems for other packages?
This was discussed a while back. I think Free basically said, the
security team will not support such a kernel themselves, but otherwise
is not opposed. It is basically a person-power issue as I understand it.
Some few people who have the ability and time to keep up with kernel
security issues and provided patched rt kernels in a timely manner are
the basic missing pieces.
I'll try to find the thread in the archives.
-Eric Rz.
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