From owner-freebsd-smp Mon Sep 23 6:40: 2 2002 Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B22C537B401 for ; Mon, 23 Sep 2002 06:40:00 -0700 (PDT) Received: from mail.speakeasy.net (mail17.speakeasy.net [216.254.0.217]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4483843E75 for ; Mon, 23 Sep 2002 06:40:00 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: (qmail 5369 invoked from network); 23 Sep 2002 13:40:12 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail17.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 23 Sep 2002 13:40:12 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.5/8.12.5) with ESMTP id g8NDdvBv081362; Mon, 23 Sep 2002 09:39:58 -0400 (EDT) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.2 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <3D8CBE7D.877EA3A4@mindspring.com> Date: Mon, 23 Sep 2002 09:40:01 -0400 (EDT) From: John Baldwin To: Terry Lambert Subject: Re: For those with P4 SMP problems.. Cc: smp@freebsd.org, beemern Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On 21-Sep-2002 Terry Lambert wrote: > beemern wrote: >> i'm preparing to start in on Terry Lambert's suggestion, however, >> perhaps you (anyone) could clear up a few minor questions.. >> >> -he says other systems are "matching CPUs started at the time of the >> check" >> ..matching them with what? > > The theory is that the BIOS has the corect information, but in the > wrong order, and FreeBSD cares about the order, but Linux and Windows > do not, because they;ve performed an additional optimization that lets > them start the APs simultaneously, and a side effect of this is that > they don't care about order of start, they just care *that* they start. Except that in this case we have a 2-cpu system so we are only starting one additional processor. Hence, this entire argument is irrelevant. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message