From owner-freebsd-alpha@FreeBSD.ORG Wed Jan 28 10:36:07 2004 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 360E716A4CE for ; Wed, 28 Jan 2004 10:36:07 -0800 (PST) Received: from mail2.speakeasy.net (mail2.speakeasy.net [216.254.0.202]) by mx1.FreeBSD.org (Postfix) with ESMTP id EBC3C43D2D for ; Wed, 28 Jan 2004 10:36:05 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 30371 invoked from network); 28 Jan 2004 18:36:05 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 28 Jan 2004 18:36:05 -0000 Received: from 10.50.40.205 (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.10/8.12.10) with ESMTP id i0SIZwM0063934; Wed, 28 Jan 2004 13:35:58 -0500 (EST) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: Andrew Gallatin , Tom Ponsford Date: Wed, 28 Jan 2004 10:42:50 -0500 User-Agent: KMail/1.5.4 References: <4011B6F6.5040306@theriver.com> <40143372.8090207@theriver.com> <16407.1903.816168.318651@grasshopper.cs.duke.edu> In-Reply-To: <16407.1903.816168.318651@grasshopper.cs.duke.edu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200401281042.50762.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) cc: freebsd-alpha@freebsd.org Subject: Re: Same problem, new year 2100A machine check X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Jan 2004 18:36:07 -0000 On Tuesday 27 January 2004 07:50 pm, Andrew Gallatin wrote: > Tom Ponsford writes: > > It DOES NOT boot: > > > > FreeBSD 4.xx MP kernel -machine check as it probes PCI/EISA bus > > Interesting. FreeBSD 4 never supported MP on alpha. > > > FreeBSD 5.0, 5.2 uniprocessor kernel or MP kernel--machine check as it > > probes > > Here are some things to do/try. > > 1) Build a kernel with ddb and get a stack trace. > When the machine crashes and you land at the "db>" prompt, type 'tr' > > This might not be incredibly helpful because machine checks > are not synchronous, but it may narrow things down a little bit. > > 2) Disable all but CPU0 from the SRM console. There's a bitmask > you can set from SRM (I don't remember off the top of my head what it > is, but its probably set to 0xfff now). You can also do 'kern.smp.disabled=1' -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org