From owner-freebsd-ia64@FreeBSD.ORG Mon Jul 27 21:04:36 2009 Return-Path: Delivered-To: freebsd-ia64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 54A5510656CF; Mon, 27 Jul 2009 21:04:36 +0000 (UTC) (envelope-from mexas@bristol.ac.uk) Received: from dirj.bris.ac.uk (dirj.bris.ac.uk [137.222.10.78]) by mx1.freebsd.org (Postfix) with ESMTP id 0F6358FC0A; Mon, 27 Jul 2009 21:04:35 +0000 (UTC) (envelope-from mexas@bristol.ac.uk) Received: from seis.bris.ac.uk ([137.222.10.93]) by dirj.bris.ac.uk with esmtp (Exim 4.69) (envelope-from ) id 1MVXN0-0005Jj-NN; Mon, 27 Jul 2009 22:04:34 +0100 Received: from mech-cluster241.men.bris.ac.uk ([137.222.187.241]) by seis.bris.ac.uk with esmtp (Exim 4.67) (envelope-from ) id 1MVXMz-0000pt-SA; Mon, 27 Jul 2009 22:04:30 +0100 Received: from mech-cluster241.men.bris.ac.uk (localhost [127.0.0.1]) by mech-cluster241.men.bris.ac.uk (8.14.3/8.14.3) with ESMTP id n6RL4T6x044799; Mon, 27 Jul 2009 22:04:29 +0100 (BST) (envelope-from mexas@bristol.ac.uk) Received: (from mexas@localhost) by mech-cluster241.men.bris.ac.uk (8.14.3/8.14.3/Submit) id n6RL4SJJ044770; Mon, 27 Jul 2009 22:04:28 +0100 (BST) (envelope-from mexas@bristol.ac.uk) X-Authentication-Warning: mech-cluster241.men.bris.ac.uk: mexas set sender to mexas@bristol.ac.uk using -f Date: Mon, 27 Jul 2009 22:04:28 +0100 From: Anton Shterenlikht To: "O. Hartmann" Message-ID: <20090727210428.GA30253@mech-cluster241.men.bris.ac.uk> References: <4A6DB30B.20705@zedat.fu-berlin.de> <4A6DB9F1.7050404@haruhiism.net> <4A6E0620.6070200@mail.zedat.fu-berlin.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A6E0620.6070200@mail.zedat.fu-berlin.de> User-Agent: Mutt/1.5.20 (2009-06-14) X-Spam-Score: -1.5 X-Spam-Level: - Cc: freebsd-current@freebsd.org, Kamigishi Rei , freebsd-ia64@freebsd.org Subject: Re: FreeBSD 8.0-BETA2/amd64 crashes on SMP under load X-BeenThere: freebsd-ia64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the IA-64 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Jul 2009 21:04:36 -0000 On Mon, Jul 27, 2009 at 09:55:12PM +0200, O. Hartmann wrote: > Kamigishi Rei wrote: > > O. Hartmann wrote: > >> I have the problem of crashing FreeBSD 8.0-BETA2/amd64 under load on > >> all of our SMP boxes. Is there an issue known at the moment? If not, I > >> will prepare the kernel for whitnessing and provide more informations, > >> if you wish. > > A quick question: what is in the crash message, i.e. the backtrace? > > And what kind of crash is it - a panic() or a fatal trap? > > On the 8-core server box, I sometimes see : > > Fatal trap 12: page fault while in kernel mode > fault code = supervisor read, page not present Not sure if it's related, but on ia64 SMP (2 cpus) with 8.0-current and later with 8.0-beta1 (I havent' built beta2 yet) I'm getting crashes under load every so often. E.g buildworld -j8 is likely to crash the box. No messages, just a sudden freeze, no backtrace or panic, and then reboot. If load is less heavy, e.g. fewer processes and some idle time, the problem doesn't seem to appear. I'm happy to do any further testing, if suggested. -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 928 8233 Fax: +44 (0)117 929 4423