Re: [Bug #10640] audio skipping on 2.6.26-rc1

From: Rafael J. Wysocki
Date: Mon May 12 2008 - 15:29:15 EST


On Monday, 12 of May 2008, Ingo Molnar wrote:
>
> * Parag Warudkar <parag.warudkar@xxxxxxxxx> wrote:
>
> > Rafael J. Wysocki <rjw <at> sisk.pl> writes:
> >
> > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10640
> > > Subject : audio skipping on 2.6.26-rc1
> > > Submitter : Miklos Szeredi <miklos <at> szeredi.hu>
> > > Date : 2008-05-07 7:56 (5 days old)
> > > References : http://marc.info/?l=linux-kernel&m=121014707707781&w=2
> > > Handled-By : Ingo Molnar <mingo <at> elte.hu>
> >
> > This is a duplicate of [Bug #10616] Horrendous Audio Stutter - current
> > git .
>
> that should be resolved via your patch which i pushed upstream (commit
> v2.6.26-rc1-83-gaac6abc), which marks group scheduling experimental and
> non-default.
>
> i think the audio skipping from Miklos, if it does not go away with
> disabling group scheduling, might also be solved by:
>
> - commit v2.6.26-rc1-181-g4615112 ("sched: fix weight calculations")
> from Mike.
>
> - or by commit v2.6.26-rc1-82-g3e51f33 from Peter ("sched: add optional
> support for CONFIG_HAVE_UNSTABLE_SCHED_CLOCK") which makes the
> scheduler clock more reliable [and hence produce no artificial
> latencies] on NOHZ
>
> - or by commit v2.6.26-rc1-66-ga992241 from Peter ("sched: fix
> normalized sleeper").

Miklos, can you please verify if the problem is present in 2.6.26-rc2?

Rafael
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