Re: [PATCH][2.6] local APIC LVTT init bug

From: Mikael Pettersson
Date: Fri Jan 23 2004 - 11:50:01 EST


Maciej W. Rozycki writes:
> On Thu, 22 Jan 2004, Mikael Pettersson wrote:
>
> > __setup_APIC_LVTT() incorrectly sets i82489DX-only bits
> > which are reserved in integrated local APICs, causing
> > problems in some machines. Fixed in this patch by making
> > this setting conditional.
>
> Sigh -- why can't designers keep such a trivial backwards
> compatibility??? The integrated APIC was said to be backwards compatible
> when introduced and so far all implementations used to. What you write
> means that has been broken -- could please say which vendor to blame?

The ASUS L3800C was mentioned. I don't know of any others.

> Your proposal is therefore the only correct one.

Thanks for confirming that.

/Mikael
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