Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata

Dave Jones
2003-09-11T14:16:47Z

On Thu, Sep 11, 2003 at 04:01:08PM +0200, Andi Kleen wrote:

> > What's wrong with the current status quo that just says "Athlon prefetch
> > is broken"?
> It doesn't fix user space for once.

And for another, it cripples the earlier athlons which don't have this
errata. Andi's fix at least makes prefetch work again on those boxes.
It's also arguable that prefetch() helps the older K7's more than the
affected ones.

Dave

--
Dave Jones http://www.codemonkey.org.uk