Re: [Linux-ia64] Big problems with 2.4.7

[Alex Williamson <awilliam@fc.hp.com>]

   Andreas and Martin, thanks for finding and testing this.  Can
anyone from Intel comment on why the PCAT_COMPAT flag is not set
in the APIC on a Lion when it does have a dual-8259 style interrupt
setup?  This flag is set on a BigSur.  Is there a better, more
reliable way to flag when a platform does not support legacy
interrupts?  Thanks,

	Alex

Andreas Schwab wrote:
> 
> Alex Williamson <awilliam@fc.hp.com> writes:
> 
> |> --- arch/ia64/kernel/acpi.c.orig        Wed Jul 25 09:14:04 2001
> |> +++ arch/ia64/kernel/acpi.c     Wed Jul 25 09:14:22 2001
> |> @@ -210,7 +210,7 @@
> |>                                  * dual-8259 compatible setup.
> |>                                  */
> |>                                 iosapic_init(iosapic->address, iosapic->irq_base,
> |> -                                            (madt->flags & MADT_PCAT_COMPAT));
> |> +                                            (1));
> |>                         break;
> |>
> |>                 case ACPI20_ENTRY_PLATFORM_INT_SOURCE:
> 
> It works now with this patch.
> 
> |> This is definitely a bug in Lion firmware if this is the problem, so
> |> make sure you're running the latest version.  Thanks,
> 
> I do run the latest (83B).
> 
> Andreas.
> 
> --
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> SuSE Labs                                        completely different."
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Alex Williamson                                  Linux Development Lab
awilliam@fc.hp.com                                     Hewlett Packard
970-898-9173                                          Fort Collins, CO