Re: [BISECTED] Lots of "rescheduling IPIs" in powertop

Andi Kleen
2008-05-13T20:54:52Z

Vegard Nossum <vegard.nossum@gmail.com> writes:
>
> This initially showed up on my 2.6.24.5-85.fc8 (Fedora) kernel.
>
> I have two different systems (one laptop, one desktop) which both show the
> same symptoms, please do tell me if you need any more info.

What CPUs do they have? And does the problem really go away when
you boot with idle=mwait ? And what does the following program
output?

#include <asm/msr.h>

main()
{
printf("%x\n", cpuid_edx(5));
}

-Andi