From owner-freebsd-current@FreeBSD.ORG Mon May 17 08:09:15 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 65FC416A4CE for ; Mon, 17 May 2004 08:09:15 -0700 (PDT) Received: from mail1.speakeasy.net (mail1.speakeasy.net [216.254.0.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id E180A43D31 for ; Mon, 17 May 2004 08:09:10 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: (qmail 5795 invoked from network); 17 May 2004 15:09:10 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 17 May 2004 15:09:10 -0000 Received: from 10.50.40.205 (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i4HF920j047283; Mon, 17 May 2004 11:09:02 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: freebsd-current@FreeBSD.org Date: Mon, 17 May 2004 11:09:32 -0400 User-Agent: KMail/1.6 References: <40A43E86.6040504@sbcglobal.net> <40A5632E.6070204@sbcglobal.net> <40A56A5D.1070002@sbcglobal.net> In-Reply-To: <40A56A5D.1070002@sbcglobal.net> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200405171109.33349.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: Jason King Subject: Re: lockups X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 May 2004 15:09:15 -0000 On Friday 14 May 2004 08:54 pm, Jason King wrote: > ok i'm a dumbass... in my haste this morning, i commented out the wrong > line in my config file, so when i tried disabling mixed mode, apic > support wasn't even compiled in the kernel. So to make extra sure, I > went back and explicitly tried it with the 5.2.1-RELEASE cd (disabling > apic worked, disabling mixed mode did not), so its really something > related to apic support. So next question, what can I do to track down > the problem? Any suggestions for resources to understand how the apic > stuff works? Might there be a way to grab the kernel messages even > after a reboot since the lockups don't even my to drop to the debugger? > Doing a boot -v generated a bunch of text that I couldn't read as it > scrolled by too fast, and I'm wondering if it might possibly help shed > some light as to what's going on... Note that you can't disable mixed mode via a tunable on 5.2.1, so you might want to retest disabling mixed mode. However, the first steps are to work on the non-ACPI case as that is easiest. I'll need 'mptable' output and dmesg output from a verbose boot with APIC enabled and ACPI disabled if you can get that. Thanks. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org