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

Andrew Morton
2003-10-01T03:13:26Z

Jamie Lokier <jamie@shareable.org> wrote:
>
> Nakajima, Jun wrote:
> > 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.
>
> Our question is whether kernels configured specifically for non-AMD
> (e.g. Winchip or Elan kernels) must have the AMD fixup code (it is a
> few hundred bytes), refuse to boot on AMD, ignore the problem, or work
> but not fix up userspace.

Refusing to boot would be best I think. Fixing it up anyway would be OK
too.

Ignoring the problem in kernel and/or userspace could be viewed as a
response to pilot error but as always it would be nice if, given a choice,
we can help the pilot.