From owner-cvs-src@FreeBSD.ORG Wed Feb 1 16:44:36 2006 Return-Path: X-Original-To: cvs-src@freebsd.org Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D3B2216A420; Wed, 1 Feb 2006 16:44:36 +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 60DBC43D46; Wed, 1 Feb 2006 16:44:36 +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 k11GiYZh001787 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 1 Feb 2006 11:44:35 -0500 (EST) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.12.9p2/8.12.9/Submit) id k11GiRMx068848; Wed, 1 Feb 2006 11:44:27 -0500 (EST) (envelope-from gallatin) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17376.58731.618704.264566@grasshopper.cs.duke.edu> Date: Wed, 1 Feb 2006 11:44:27 -0500 (EST) To: Steve Kargl In-Reply-To: <20060201160923.GA67621@troutmask.apl.washington.edu> References: <200601311109.k0VB9MRq025366@repoman.freebsd.org> <20060201104752.A68774@grasshopper.cs.duke.edu> <20060201160923.GA67621@troutmask.apl.washington.edu> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid 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-src@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Feb 2006 16:44:37 -0000 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. > into sys/ on 2006-01-26 that is causing the problems. > I suspect the pts code, but can't prove it, yet. I built a kernel without 'device pty' thus removing the pts code, and I still see the same panic with redzone enabled. Perhaps your initial panic is the result of the pts code, but this memguard/redzone panic is different, and may not be related. My original question still stands: Does redzone work in combination with INVARIANTS on other platforms? Amd64 is the only -current platform I'm running... Drew