Re: [Fwd: Re: Kernel 2.4 CPU Arch issues]

William M. Quarles
2003-07-21T00:10:15Z

Alan Cox wrote:
> On Llu, 2003-07-21 at 00:29, William M. Quarles wrote:
>
>>Well, you separated the Pentium and Pentium-MMX. It's the exact same
>>difference between Pentium Pro and Pentium-II: MMX technology. That's
>>the point.
>
>
> This makes no difference to the kernel. Splitting PPro would only make
> sense for one reason. The Pentium Pro needs store barriers on
> spin_unlock and friends, the PII and later do not. However if this was
> done you'd also want to check for PPro boots with a PII kernel and panic
> which isn't currently done
>

Well, wouldn't changing the gcc -march option and/or adding -mcpu
options for the various processors in the Makefile make a difference, as
the patchfile suggests?

--
William M. Quarles

quarlewm@jmu.edu
wquarles@bucknell.edu
walrus@bellsouth.net