Re: [Bug #10710] [BISECTED] Lots of "rescheduling IPIs" inpowertop

From: Thomas Gleixner
Date: Sun May 18 2008 - 08:34:41 EST


On Sun, 18 May 2008, Vegard Nossum wrote:
> On Sun, May 18, 2008 at 1:13 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.25. Please verify if it still should be listed.
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10710
> > Subject : [BISECTED] Lots of "rescheduling IPIs" in powertop
> > Submitter : Vegard Nossum <vegard.nossum@xxxxxxxxx>
> > Date : 2008-05-13 20:42 (6 days old)
> > References : http://marc.info/?l=linux-kernel&amp;m=121071176205864&amp;w=4
> > Handled-By : Andi Kleen <andi@xxxxxxxxxxxxxx>
> > Arjan van de Ven <arjan@xxxxxxxxxxxxx>
> > Ingo Molnar <mingo@xxxxxxx>
> > Patch : http://marc.info/?l=linux-kernel&amp;m=121074826823352&amp;w=4
> >
>
> Ingo Molnar provided the patch that solved the problem (the referenced
> link) but he wanted to wait for Andreas Herrmann to provide an
> additional patch that would solve some implication on AMD CPUs. So
> this is in theory fixed, but the fix has not yet been applied anywhere
> as far as I know.

Both fixes are in

http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-x86.git;a=shortlog;h=x86-fixes-for-linus

which was pulled by Linus yesterday, but he did not push them out to
his tree yet.

Thanks,

tglx
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