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

[Nakajima, Jun]

Oh, I thought you already closed this issue and you were discussing a
different thing.

I agree. They kernel should fix up userspace for this CPU errata.

	Jun

> -----Original Message-----
> From: Andrew Morton [mailto:akpm@xxxxxxxx]
> Sent: Tuesday, September 30, 2003 7:07 PM
> To: Nakajima, Jun
> Cc: jamie@xxxxxxxxxxxxx; davej@xxxxxxxxxx; torvalds@xxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; richard.brunner@xxxxxxx
> Subject: Re: [PATCH] Mutilated form of Andi Kleen's AMD prefetch
errata
> patch
> 
> "Nakajima, Jun" <jun.nakajima@xxxxxxxxx> 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?
> 
> Detect when user code stumbles over this CPU errata and make it look
like
> nothing happened.

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