From owner-freebsd-stable@FreeBSD.ORG Thu Dec 18 07:25:12 2003 Return-Path: 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 8AA8516A4CE for ; Thu, 18 Dec 2003 07:25:12 -0800 (PST) Received: from pol.dyndns.org (pol.net1.nerim.net [80.65.225.93]) by mx1.FreeBSD.org (Postfix) with ESMTP id A1FC243D54 for ; Thu, 18 Dec 2003 07:25:08 -0800 (PST) (envelope-from guy@device.dyndns.org) Received: from pissenlit.device.local ([172.16.10.66]) by pol.dyndns.org (8.12.9/8.12.9) with ESMTP id hBIFOFdK015328; Thu, 18 Dec 2003 16:24:18 +0100 (CET) Message-ID: X-Mailer: XFMail 1.5.4 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <005401c3c575$674d4ab0$41c3c3cf@office.sihope.com> Date: Thu, 18 Dec 2003 16:24:14 +0100 (CET) From: guy@device.dyndns.org To: Adam Maloney X-Virus-Scanned: by amavis-milter (http://www.amavis.org/) cc: freebsd-stable@freebsd.org Subject: RE: SMP forcing crash/reboot in 4.9-STABLE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Dec 2003 15:25:12 -0000 On 18-Dec-2003 Adam Maloney wrote: > We have a 4-way P3/500 Xeon system running FreeBSD. We had been running > 4.8-STABLE for a number of months with SMP enabled and no issues. Around > 25-November we moved to 4.9-STABLE. The system ran without SMP enabled > until Tuesday, when we enabled SMP and APIC_IO, rebuilt the kernel, and > rebooted. Then about every 30 minutes the system would reboot. We moved > back to single-processor (using the source updated on 25-Nov) and it has > worked since. > > So we synced source last night and tried enabling SMP again this morning. > We are still seeing the same problem. We have switched back to a non-SMP > kernel (from last night's sync) and are running fine. > > Has anyone else seen this? Any ideas where to look? There is nothing in > messages or dmesg about the crash, and I haven't been able to catch it at > the console to see if there's a message there. This may be related to my problem, though the symptom is different. Since the same time (around the end of november) i tried many times to build a SMP-enabled 4.9-STABLE kernel for my bi-athlon machine. It always hangs (no error msg, total iresponsiveness) at the end of the kernel boot (just before mounting filesystems). I then reverted my cvs tree to use -RELEASE, and all is fine. I did not yet try a non-SMP kernel. I'll do that asap. -- Guy