[PD] info Gem: problems with new Nvidia drivers [Dri-devel] Re: Athlon/Linux bug found (fwd)

rat at telecoma.net rat at telecoma.net
Tue Jan 22 22:36:47 CET 2002


this could be for some on the list the problem why the new (well not soo
new), nvidia drivers are not working, or makeing troubles.

---------- Forwarded message ----------
Date: Tue, 22 Jan 2002 22:05:54 +0100
From: "Dieter [iso-8859-15] Nützel" <Dieter.Nuetzel at hamburg.de>
To: "Lincoln, Michael C" <mclinc at essex.ac.uk>
Cc: DRI-Devel <dri-devel at lists.sourceforge.net>
Subject: [Dri-devel] Re: Athlon/Linux bug found

On Monday, 21. January 2002, Michael C Lincoln wrote:
> Just in case any one missed it... These is a hardware bug in the Athlon
> processor's extended paging (PSE) that cause serious problems when AGP
> is in use. I've attached a copy of the article as the site is currently
> slashdotted.
> "The bad news is that a major Athlon CPU bug has been discovered, and it
> affects Linux 2.4. Note that this is a bug in the actual CPU itself, and
> is not a Linux bug. However, it becomes our problem because there are
> very many semi-broken Athlon/Duron/Athlon MP CPUs out there.


it is not true that Linux 2.4 is "hard" affected.
Read L-KML about it.

Linux "only" use aligned access of 4MB pages, but the current Nvidia kernel 
module seems to be affected.


Dieter Nützel
Graduate Student, Computer Science

University of Hamburg
Department of Computer Science
@home: Dieter.Nuetzel at hamburg.de

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