Cal Peake wrote: > 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]> >
This patch also solves the boot problem on a Dell E1501. I started the thread "ACPI Regression on Dell E1501" regarding this issue on June 21, 2007. Acked-by: Tim Gardner <[EMAIL PROTECTED]> -- Tim Gardner [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
