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SubjectRe: 2.6.31-rc5 regression: x86 MCE malfunction on Thinkpad T42p
On Mon, Aug 10, 2009 at 02:32:28PM +0200, Andi Kleen wrote:
> > > The appended patch should remove the warning. Can you please test it?
> >
> > It works (no more warning), but I feel I'm better off using "lapic"
>
> Thanks for testing.
>
> > because it enables thermal monitoring and performance counters.
>
> When the BIOS doesn't enable it then force enabling lapic might not work.
>
> This could cause either boot failures (obvious) or more subtle
> problems like SMM doing something unexpected. Just saying that if you have
> strange problems later first try disabling this option again.

Thanks for the heads-up. I remember I tried to use oprofile
in the past on this machine and was disappointed that it only
got the timer event. I'll keep lapic for now unless I see
signs of instability.


Johannes


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