From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: MTRR use in drivers Date: Sun, 23 Jun 2013 15:10:36 -0700 Message-ID: <51C7725C.5090801@zytor.com> References: <51C3DDFA.7050204@zytor.com> <51C69732.1010906@gmail.com> <20130623192936.GA28655@khazad-dum.debian.net> <51C75465.9060007@zytor.com> <20130623215649.GA1288@khazad-dum.debian.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.zytor.com (terminus.zytor.com [198.137.202.10]) by gabe.freedesktop.org (Postfix) with ESMTP id 6D0CBE5C7A for ; Sun, 23 Jun 2013 15:10:55 -0700 (PDT) In-Reply-To: <20130623215649.GA1288@khazad-dum.debian.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Henrique de Moraes Holschuh Cc: Brice Goglin , Linux Kernel Mailing List , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On 06/23/2013 02:56 PM, Henrique de Moraes Holschuh wrote: > > And as far as I could find from Intel's not-that-complete public > "specification updates", we are applying the errata workaround to a few more > processors than strictly required, but since I have no idea how to write a > test case, I can't whitelist the 3rd-gen Pentium M on my T43, nor can I get > ThinkPad owners to test it for us on 1st and 2nd-gen Pentium M and report > back. > Which specific erratum are you referring to, here? The "WC becomes UC" erratum? I don't think there is a sane testcase for it since it needs a very complicated setup to trigger. -hpa