From owner-cvs-all@FreeBSD.ORG Wed Feb 1 17:55:07 2006 Return-Path: X-Original-To: cvs-all@FreeBSD.org Delivered-To: cvs-all@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B825916A422; Wed, 1 Feb 2006 17:55:07 +0000 (GMT) (envelope-from gallatin@cs.duke.edu) Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9DCBE43D6A; Wed, 1 Feb 2006 17:55:05 +0000 (GMT) (envelope-from gallatin@cs.duke.edu) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.13.4/8.13.4) with ESMTP id k11Ht2cj018333 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 1 Feb 2006 12:55:02 -0500 (EST) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.12.9p2/8.12.9/Submit) id k11HsuTG068963; Wed, 1 Feb 2006 12:54:56 -0500 (EST) (envelope-from gallatin) Date: Wed, 1 Feb 2006 12:54:56 -0500 From: Andrew Gallatin To: Steve Kargl Message-ID: <20060201125456.A68851@grasshopper.cs.duke.edu> References: <200601311109.k0VB9MRq025366@repoman.freebsd.org> <20060201104752.A68774@grasshopper.cs.duke.edu> <20060201160923.GA67621@troutmask.apl.washington.edu> <17376.58731.618704.264566@grasshopper.cs.duke.edu> <20060201171754.GA67925@troutmask.apl.washington.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20060201171754.GA67925@troutmask.apl.washington.edu>; from sgk@troutmask.apl.washington.edu on Wed, Feb 01, 2006 at 09:17:54AM -0800 X-Operating-System: FreeBSD 4.9-RELEASE-p1 on an i386 Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, Pawel Jakub Dawidek , cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_malloc.c src/share/man/man9 Makefile redzone.9 src/sys/vm redzone.c redzone.h src/sys/conf NOTES files options X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Feb 2006 17:55:07 -0000 Steve Kargl [sgk@troutmask.apl.washington.edu] wrote: > On Wed, Feb 01, 2006 at 11:44:27AM -0500, Andrew Gallatin wrote: > > > > Steve Kargl writes: > > > On Wed, Feb 01, 2006 at 10:47:52AM -0500, Andrew Gallatin wrote: > > > > WARNING: WITNESS option enabled, expect reduced performance. > > > > Memory modified after free 0xffffff0000006d00(248) val=5 @ 0xffffff0000006dd0 > > > > kernel trap 9 with interrupts disabled > > > > > > You can trigger this panic without the red zone stuff. > > > See my string of post from yesterday. Something went > > > > Your panic looks like the same panic as mine, but with memguard rather > > than redzone. These systems do similar things, I suppose it is only > > natural that they'd be hit by the same bug. > > You get it without memguard, too. Kris suggested that I try memguard > to capture the problem. Unfortunately, memguard actually made > matters worse in that I did not even make it to single user mode > before a panic. Odd. I do not get it without using either memguard or redzone. I have a (mostly generic) kernel with WITNESS & INVARIANTS that boots fine. Maybe we should move this to -current or -amd64, as it does not seem to be directly related to this commit.. Drew