On Wed, 2007-03-21 at 11:37 +0100, Andi Kleen wrote:
> > The BIOS/ACPI is broken and does only expose C1, which should not switch
> > off LAPIC. The BIOS is switching into deeper C-States behind the kernels
> > back somehow.
> Hmm, perhaps we can check AMD && (cstate >= 2 || has a battery) ? 
> Should be doable by looking up the battery object in ACPI

Which makes us rely on another ACPI feature. What guarantees that the
ACPI tables are correct for this one ?


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