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

[Maciej W. Rozycki]

On Fri, 23 Jan 2004, Mikael Pettersson wrote:

>  >  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.

 It seems to be P4-based -- I'm pretty sure the integrated APIC behaves
the same way regardless of where its plugged in, so why wouldn't this
problem appear earlier?  I've browsed my mailbox and found a patch that
was stated to fix problems on the system involved.  But the patch disables
the timer around certain actions -- that may indeed matter for some broken
firmware (especially some SMM crap), but I can't see how these bits could.

 That doesn't of course mean your patch shouldn't be applied -- it won't 
hurt to be overly careful.

  Maciej

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@xxxxxxxxxxxxx, PGP key available        +
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