Re: Problems with MSI-X on ia64

Chris Wedgwood
2006-02-17T19:10:26Z

On Fri, Feb 17, 2006 at 09:36:05AM -0700, Grant Grundler wrote:

> If the machine is suppose to support a 32-bit OS, then yeah, it's a
> BIOS bug. It all depends on who defines the support matrix.

Well, maybe. I mean, the CPUs all have PAE (in 32-bit mode) and thus
can use 36-bit physical addressing these days (or more in the case of
amd chips).

> The other way is to reassign "invalid" resources (above 4GB) with
> "valid" ones (below 4GB). I suspect windows is doing this and I'd
> rather see linux take this route as well if possible.

Hrm, it may be doing this. I wonder how that works though with 4GB's
of RAM installed?

I originally thought Windows probably allowed the larger addresses
and use PAE but that might not be the case at all.