Re: cpuinfo & Cyrix 6x86

B. James Phillippe (
Wed, 27 Nov 1996 10:51:08 -0800 (PST)

On Wed, 27 Nov 1996, Pierfrancesco Caci wrote:

> Why is the Cyrix 6x86 seen as a 486 in /proc/cpuinfo? Isn't it a
> Pentium-class cpu?
> Does this mean that I've to compile for a 486 target, instead a
> Pentium one?

Yes, it's a Pentium class chip. It gets detected as a 486 because the
stock kernel doesn't know how to correctly identify it (yet). Build for
PPro (from a Cyrix support person) and get Mike Jagdis' Definitive Cyrix
6x86 patches. Check the Linux kernel archive or mail me if you can't find


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