linux-kernel - Re: audio skipping on 2.6.26-rc1

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Message-Id: <E1Jtf3N-0003wz-2i@pomaz-ex.szeredi.hu>
Date:	Wed, 07 May 2008 10:31:09 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	mingo@...e.hu
CC:	miklos@...redi.hu, linux-kernel@...r.kernel.org,
	a.p.zijlstra@...llo.nl
Subject: Re: audio skipping on 2.6.26-rc1

> > On a T60 I get occasional (but very annoying) audio skips while 
> > compiling kernels.  No kernels (as long as I remeber) prior to this 
> > had any similar problems.
> > 
> > It's reproducible, but takes some minutes to get reliably.  Please 
> > don't tell me to bisect it :)
> 
> please try latest -git [it has scheduler interactivity fixes], does it 
> work any better?

OK, will try.

> 
> and also turn off:
> 
> > # CONFIG_CGROUPS is not set
> > CONFIG_GROUP_SCHED=y
> > CONFIG_FAIR_GROUP_SCHED=y
> 
> as it still causes more latencies than it should (even in 
> sched-devel/latest), and the reason is still not understood.

Yeah, the strange thing is that I did have the keyboard repeat
problems with the GROUP_SCHED options on 2.6.25-rc which were
eventually fixed, but this audio skipping is new to 2.6.26.

Miklos
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