Re: PAT support (or lack of) for Pentium 3 CPU's

From: Alan Cox
Date: Tue Jun 16 2009 - 12:37:14 EST

On Tue, 16 Jun 2009 08:09:04 -0700
"Brad Allen" <braddo@xxxxxxxxxxxxxxxx> wrote:

> It has come to my attention that PAT support has been disabled for P3 CPU's in kernel versions 2.6.30 and later due to a bug in the CPU.
> I have attempted to get the NVIDIA proprietary drivers working with these kernel versions and 3 different Pentium 3 motherboards, all have failed. The drivers seem to require PAT support in order to work correctly, each board has in fact produced a different error when using only MTRR.
> Can a kernel option be added to enable/disable PAT for P3 CPU's? Or is there any possible workaround for the bug?

Please ask Nvidia for support on their proprietary products. Only they
have all the code.
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