My mistake, but it still made my system more stable.
Roly

On Tue, 24 Sep 2002 09:01:16 -0500
Tom Brinkman <[EMAIL PROTECTED]> wrote:

> On Sunday September 22 2002 01:48 am, Roland Hughes wrote:
> > The reason for the "mem=nopentium" in the lilo is that when the
> > kernal was developed there are memory commands/coding that refer to
> > pentium only commands. If you are running a Athlon/duron which do
> > not have these commands they cause flaky/erratic behaviour. Roly
> 
>    That's the common misconception, pretty much the first rumor based
>    on nVidia's first reaction to the 'bug'.  But it's not the case, it
>    was a kernel bug and video driver issue. The kernel was fixed
>    months ago. I believe XFree86 was also.
> 
>      http://www.geocrawler.com/lists/3/Linux/35/175/7626960/
> Note: "There *is* an Athlon/AGP issue.  This issue has
>  *not* been tied to a bug with the Athlon/Duron processors."
>      ...and...
>  "Our conclusion is that the operating system is creating coherency
>  problems within the system by creating cacheable translation to AGP
>  GART-mapped physical memory."   
> 
>    Pay particular attention to this sentence,
> 
> "AMD's educated guess is that these Athlon/AGP stability problems have
> to do with speculative writes by the CPU and how they can cause 
> indavertent trashing of AGP memory if pages are mapped with
>                                    ^^^^^^^^^^^^^^^^^^^^^^^^
> indiscretion by the OS and drivers."
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
>     All mem=nopentium does is to limit pages to 4k, nothing to do with
>     "pentium only commands".
> -- 
>     Tom Brinkman                  Corpus Christi, Texas
> 
> 


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