Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751582AbaBETUY (ORCPT ); Wed, 5 Feb 2014 14:20:24 -0500 Received: from merlin.infradead.org ([205.233.59.134]:57440 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751198AbaBETUW (ORCPT ); Wed, 5 Feb 2014 14:20:22 -0500 Date: Wed, 5 Feb 2014 20:20:12 +0100 From: Peter Zijlstra To: Vince Weaver Cc: junk@eslaf.co.uk, alan@lxorguk.ukuu.org.uk, Ingo Molnar , Stephane Eranian , linux-kernel@vger.kernel.org Subject: Re: [PATCH] perf,x86,p6: Add userspace RDPMC quirk for P6 Message-ID: <20140205192012.GL2936@laptop.programming.kicks-ass.net> References: <20140205102718.GF3229@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 05, 2014 at 02:16:43PM -0500, Vince Weaver wrote: > On Wed, 5 Feb 2014, Peter Zijlstra wrote: > > > P6 class machines can die hard when PCE gets enabled due to CPU > > errata. The safe way it so disable it by default and keep it disabled. > > > > See errata 26: > > so you take an errata applicable to a subset of Pentium Pro steppings and > apply it to the whole p6 line (which includes the whole way up to Pentium > III)? > > Or am I missing something in the documentation you link to? I forgot it went all the way to P-III, let me try and find the other erratas. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/