From owner-freebsd-stable Tue Nov 5 12:17:53 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6A24D37B401 for ; Tue, 5 Nov 2002 12:17:52 -0800 (PST) Received: from symbion.srrc.usda.gov (symbion.srrc.usda.gov [199.133.86.40]) by mx1.FreeBSD.org (Postfix) with ESMTP id 56B2143E4A for ; Tue, 5 Nov 2002 12:17:51 -0800 (PST) (envelope-from gjohnson@srrc.ars.usda.gov) Received: from node1.cluster.srrc.usda.gov (localhost [127.0.0.1]) by symbion.srrc.usda.gov (8.12.6/8.12.6) with ESMTP id gA5KHdjI086194 for ; Tue, 5 Nov 2002 14:17:39 -0600 (CST) (envelope-from glenn@node1.cluster.srrc.usda.gov) Received: (from glenn@localhost) by node1.cluster.srrc.usda.gov (8.12.6/8.12.6/Submit) id gA5KHcSQ086193 for stable@FreeBSD.ORG; Tue, 5 Nov 2002 14:17:38 -0600 (CST) Date: Tue, 5 Nov 2002 14:17:38 -0600 From: Glenn Johnson To: stable@FreeBSD.ORG Subject: Re: SMP broken on PPro Message-ID: <20021105201738.GA86056@node1.cluster.srrc.usda.gov> References: <20021104230032.GA3217@node1.cluster.srrc.usda.gov> <20021105105146.GB57295@HAL9000.homeunix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20021105105146.GB57295@HAL9000.homeunix.com> User-Agent: Mutt/1.5.1i Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, Nov 05, 2002 at 02:51:46AM -0800, David Schultz wrote: > Thus spake Glenn Johnson : > > > I decided to do another build/install world/kernel today and the > > PPro machine panics as soon as the new kernel starts to load. I can > > run the machine fine with Friday's kernel however. All of the other > > SMP machines are working fine. I checked the BIOS of the problem > > machine and it is set for MP Spec 1.4. > > I have had no trouble with UP -STABLE running on a dual PPro system, > but I'm getting an early panic in UP and SMP -CURRENT on the same > system. I will post details to current@ soon if I can't figure out > the problem. The problem on -STABLE is with /sys/i386/i386/machdep.c, revision 1.385.2.26. I am not smart enough to know exactly what is wrong with the diff but reverting back to revision 1.385.2.25 of /sys/i386/i386/machdep.c fixes the problem. Apparently, the problem is BIOS specific so that explains why I only saw it on one of my machines (the oldest) and not the others. This would also explain why other people have not seen the problem. At this point I would say that the problem really has nothing to do with SMP, it just so happened that I experienced the problem on an SMP machine. Thanks. -- Glenn Johnson USDA, ARS, SRRC Phone: (504) 286-4252 New Orleans, LA 70124 e-mail: gjohnson@srrc.ars.usda.gov To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message