From owner-freebsd-acpi@FreeBSD.ORG Thu Nov 3 14:40:18 2005 Return-Path: X-Original-To: freebsd-acpi@freebsd.org Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AAC2E16A421 for ; Thu, 3 Nov 2005 14:40:18 +0000 (GMT) (envelope-from pho@holm.cc) Received: from relay01.pair.com (relay01.pair.com [209.68.5.15]) by mx1.FreeBSD.org (Postfix) with SMTP id 75C1C43D58 for ; Thu, 3 Nov 2005 14:40:16 +0000 (GMT) (envelope-from pho@holm.cc) Received: (qmail 19315 invoked from network); 3 Nov 2005 14:40:14 -0000 Received: from unknown (HELO peter.osted.lan) (unknown) by unknown with SMTP; 3 Nov 2005 14:40:14 -0000 X-pair-Authenticated: 80.161.118.233 Received: from peter.osted.lan (localhost.osted.lan [127.0.0.1]) by peter.osted.lan (8.13.1/8.13.1) with ESMTP id jA3EeEFh043150; Thu, 3 Nov 2005 15:40:14 +0100 (CET) (envelope-from pho@peter.osted.lan) Received: (from pho@localhost) by peter.osted.lan (8.13.1/8.13.1/Submit) id jA3EeDOU043149; Thu, 3 Nov 2005 15:40:13 +0100 (CET) (envelope-from pho) Date: Thu, 3 Nov 2005 15:40:13 +0100 From: Peter Holm To: Giorgos Keramidas Message-ID: <20051103144013.GA43086@peter.osted.lan> References: <971FCB6690CD0E4898387DBF7552B90E0346CAFB@orsmsx403.amr.corp.intel.com> <20051103.094643.74756456.haro@h4.dion.ne.jp> <436961FD.3040605@root.org> <20051103014740.GA1586@flame.pc> <20051103142446.GA1787@flame.pc> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051103142446.GA1787@flame.pc> User-Agent: Mutt/1.4.2.1i Cc: freebsd-acpi@freebsd.org, robert.moore@intel.com, freebsd-current@freebsd.org, jkim@freebsd.org Subject: Re: Panic on boot with new ACPI-CA X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Nov 2005 14:40:18 -0000 On Thu, Nov 03, 2005 at 04:24:46PM +0200, Giorgos Keramidas wrote: > On 2005-11-03 03:47, Giorgos Keramidas wrote: > >On 2005-11-02 17:03, Nate Lawson wrote: > >> As I mentioned to Jung-uk, the problem is likely an error in > >> acpi-ca modifying memory after it has freed it. The way to > >> track this down is to enable memguard(9). See the man page for > >> info. You need to add options DEBUG_MEMGUARD to your kernel, > >> set the malloc type to watch to M_ACPICA, and rebuild your > >> kernel and modules. Memguard sets page permissions so we can > >> catch the culprit who is modifying the memory. > > > > This is exactly the messgae printed on my console at panic time > > -- of memory modified after free. I'm building a kernel with > > MEMGUARD now, but it's probably going to be a bit hard to get a > > kernel dump, because the panic happens before disks are > > available and I don't have a serial console here. > > This is definitely something that is ACPI-related. I updated my > sources to the last commit before the start of the ACPI import: > > build@flame:/home/build/src$ cvs -qR up -APd -D '2005/11/01 22:00:00 UTC' > > Rebuilt everything and I see no panics now. > > I'll use the watchpoint trick Nate posted when I have a new build > to test. > I've had the same problem with two of my boxes. Here's the result of a watchpoint: http://people.freebsd.org/~pho/stress/log/acpi.html I too came to the conclusion that the damage happened between 2005-11-01 22:00:00 UTC OK 2005-11-01 22:45:00 UTC panic - Peter > - Giorgos > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" -- Peter Holm