From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268714AbTGTXrc (ORCPT ); Sun, 20 Jul 2003 19:47:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268925AbTGTXrc (ORCPT ); Sun, 20 Jul 2003 19:47:32 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:38629 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S268714AbTGTXrb (ORCPT ); Sun, 20 Jul 2003 19:47:31 -0400 Subject: Re: [Fwd: Re: Kernel 2.4 CPU Arch issues] From: Alan Cox To: "William M. Quarles" Cc: Linux Kernel Mailing List In-Reply-To: <3F1B25C2.8010403@jmu.edu> References: <3F1B25C2.8010403@jmu.edu> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1058745605.6299.4.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 21 Jul 2003 01:00:05 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Llu, 2003-07-21 at 00:29, William M. Quarles wrote: > Well, you separated the Pentium and Pentium-MMX. It's the exact same > difference between Pentium Pro and Pentium-II: MMX technology. That's > the point. This makes no difference to the kernel. Splitting PPro would only make sense for one reason. The Pentium Pro needs store barriers on spin_unlock and friends, the PII and later do not. However if this was done you'd also want to check for PPro boots with a PII kernel and panic which isn't currently done