Messages in this thread | | | Subject | RE: [PATCH] Mutilated form of Andi Kleen's AMD prefetch errata patch | Date | Tue, 30 Sep 2003 19:23:14 -0700 | From | "Nakajima, Jun" <> |
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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@osdl.org] > Sent: Tuesday, September 30, 2003 7:07 PM > To: Nakajima, Jun > Cc: jamie@shareable.org; davej@redhat.com; torvalds@osdl.org; linux- > kernel@vger.kernel.org; richard.brunner@amd.com > Subject: Re: [PATCH] Mutilated form of Andi Kleen's AMD prefetch errata > patch > > "Nakajima, Jun" <jun.nakajima@intel.com> 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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