Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261226AbTIKOQr (ORCPT ); Thu, 11 Sep 2003 10:16:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261235AbTIKOQr (ORCPT ); Thu, 11 Sep 2003 10:16:47 -0400 Received: from pix-525-pool.redhat.com ([66.187.233.200]:34961 "EHLO lacrosse.corp.redhat.com") by vger.kernel.org with ESMTP id S261226AbTIKOQB (ORCPT ); Thu, 11 Sep 2003 10:16:01 -0400 Date: Thu, 11 Sep 2003 15:14:51 +0100 From: Dave Jones To: Andi Kleen Cc: Linus Torvalds , richard.brunner@amd.com, linux-kernel@vger.kernel.org, akpm@osdl.org Subject: Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata Message-ID: <20030911141451.GA20434@redhat.com> Mail-Followup-To: Dave Jones , Andi Kleen , Linus Torvalds , richard.brunner@amd.com, linux-kernel@vger.kernel.org, akpm@osdl.org References: <20030911012708.GD3134@wotan.suse.de> <20030911160108.5678113b.ak@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030911160108.5678113b.ak@suse.de> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 724 Lines: 20 On Thu, Sep 11, 2003 at 04:01:08PM +0200, Andi Kleen wrote: > > What's wrong with the current status quo that just says "Athlon prefetch > > is broken"? > It doesn't fix user space for once. And for another, it cripples the earlier athlons which don't have this errata. Andi's fix at least makes prefetch work again on those boxes. It's also arguable that prefetch() helps the older K7's more than the affected ones. Dave -- Dave Jones http://www.codemonkey.org.uk - 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/