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SubjectRe: [ACPI] Re: PROBLEM: ACPI freezes 2.6.1 on boot
Karol Kozimor writes:
> Thus wrote Georg C. F. Greve:
> > So the problem we've been seeing seems to be related to the
> > interaction between local APIC support and ACPI.
>
> We've definitely had those problems before (with ASUS L3800C), there's
> even a patch fixing this issue (attached below) you might try.
> I guess that's another of those lost and forgotten bugzilla bugs :)
>
> --
> Karol 'sziwan' Kozimor
> sziwan@hell.org.pl
>
>
> diff -Bru linux-2.6.0-test8/arch/i386/kernel/apic.c patched/arch/i386/kernel/apic.c
> --- linux-2.6.0-test8/arch/i386/kernel/apic.c 2003-10-18 05:43:36.000000000 +0800
> +++ patched/arch/i386/kernel/apic.c 2003-10-30 23:17:50.000000000 +0800
> @@ -836,8 +836,8 @@
> {
> unsigned int lvtt1_value, tmp_value;
>
> - lvtt1_value = SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV) |
> - APIC_LVT_TIMER_PERIODIC | LOCAL_TIMER_VECTOR;
> + lvtt1_value = APIC_LVT_TIMER_PERIODIC | LOCAL_TIMER_VECTOR;
> +
> apic_write_around(APIC_LVTT, lvtt1_value);

What is the purpose of this change?
I don't remember seeing this before on LKML. (I don't have time to read bugzilla.)
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