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

From: Andi Kleen
Date: Tue May 13 2008 - 16:54:54 EST


Vegard Nossum <vegard.nossum@xxxxxxxxx> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/