On Wed, 8 Aug 2007, Andi Kleen wrote:
> Can you please test if this patch works?
Yep, seems to do the trick. Thanks!
> BTW I checked with AMD and they seem to think it's just a buggy BIOS.
Nod. Atleast we can work around it.
> Use global flag to disable broken local apic timer on AMD CPUs.
>
> The Averatec 2370 laptop BIOS seems to program the ENABLE_C1E
s~2370~2370/2371~ to be completely accurate ;)
> MSR inconsistently between cores. This confuses the lapic
> use heuristics wants to know if C1E is enabled anywhere.
>
> Use a global flag instead of a per cpu flag to handle this.
> If any CPU has C1E enabled disabled lapic use.
>
> Thanks to Cal Peake for debugging.
> Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Cal Peake <[email protected]>
--
Cal Peake
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