Re: [PATCH] cpufreq: remove dbs_mutex

Ingo Molnar
2009-06-23T19:33:44Z

* Pallipadi, Venkatesh <venkatesh.pallipadi@intel.com> wrote:

> >-----Original Message-----
> >From: Ingo Molnar [mailto:mingo@elte.hu]
> >Sent: Tuesday, June 23, 2009 12:14 PM
> >To: Pallipadi, Venkatesh
> >Cc: Thomas Renninger; Dave Jones; Rusty Russell; Linus
> >Torvalds; Yinghai Lu; Avi Kivity; Andrew Morton; Thomas
> >Gleixner; H. Peter Anvin; linux-kernel@vger.kernel.org;
> >cpufreq@vger.kernel.org; mark.langsdorf@amd.com
> >Subject: Re: [PATCH] cpufreq: remove dbs_mutex
> >
> >
> >* Pallipadi, Venkatesh <venkatesh.pallipadi@intel.com> wrote:
> >
> >> Mathieu Desnoyers sent a patch earlier that should address
> >this problem.
> >>
> >> http://lkml.indiana.edu/hypermail/linux/kernel/0906.1/00331.html
> >
> >No, that patch has _not_ fixed the regression:
> >
> > http://lkml.org/lkml/2009/6/8/563
> >
>
> The subsequent failure that Dave saw after that patch seemed to be
> related to dbs_mutex
>
> http://lkml.org/lkml/2009/6/11/6
>
> That should be be fixed by your original patch.

And how well will the two mix? This should really be pursued by the
cpufreq people i think ...

Ingo