Re: [PATCH] Mutilated form of Andi Kleen's AMD prefetch errata patch

Mike Fedyk
2003-10-01T02:08:30Z

On Tue, Sep 30, 2003 at 06:54:06PM -0700, Nakajima, Jun wrote:
> > I think we should fix up userspace.
> What do you mean by this? Patch user code at runtime (it's much more
> complex than it sounds) or remove prefetch instructions from userspace?

No, just make sure that userspace doesn't see the exceptions that the errata
will produce in obscure cases. It is all explained in several threads about
this. Search for "Andi Kleen" and "prefetch".