From owner-freebsd-questions@FreeBSD.ORG Thu May 12 09:21:56 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EDF0A16A4CE for ; Thu, 12 May 2005 09:21:56 +0000 (GMT) Received: from olive.qinip.net (olive.qinip.net [62.100.30.40]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6B94343D49 for ; Thu, 12 May 2005 09:21:56 +0000 (GMT) (envelope-from ronald-freebsd8@klop.yi.org) Received: from ronald.echteman.nl (h8441134153.dsl.speedlinq.nl [84.41.134.153]) by olive.qinip.net (Postfix) with SMTP id 016C118AD2 for ; Thu, 12 May 2005 11:21:51 +0200 (MEST) Received: (qmail 16660 invoked from network); 12 May 2005 09:21:50 -0000 Received: from unknown (HELO localhost) (10.0.1.4) by ronald.echteman.nl with SMTP; 12 May 2005 09:21:50 -0000 To: freebsd-questions@freebsd.org Date: Thu, 12 May 2005 11:20:42 +0200 From: "Ronald Klop" Content-Type: text/plain; format=flowed; delsp=yes; charset=us-ascii MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID: User-Agent: Opera M2/8.0 (FreeBSD, build 1095) Subject: CPUTYPE=p2 on a p3 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 May 2005 09:21:57 -0000 Hello, I've a mix of p2 and p3 cpu's, but I only want to compile world ones. In the past I had problems with running a world optimized with CPUTYPE=p2 on a p3. Is this a known issue? Are the i386, i486, p1, p2, p3 and p4 backwards compatible in respect to this? I understand that optimizing for p2 isn't optimal for the p3, but the code should just run isn't it? If that is known to not work, what is the max cputype which works for all? Is it wise to use CPUTYPE=i486 or pentiumpro? Greetings, Ronald. PS: Please cc me. -- Ronald Klop Amsterdam, The Netherlands