From owner-freebsd-current@FreeBSD.ORG  Sun Jun 26 02:17:34 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: current@freebsd.org
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 A407E16A41C
	for <current@freebsd.org>; Sun, 26 Jun 2005 02:17:34 +0000 (GMT)
	(envelope-from ache@nagual.pp.ru)
Received: from nagual.pp.ru (nagual.pp.ru [194.87.13.69])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 2366B43D48
	for <current@freebsd.org>; Sun, 26 Jun 2005 02:17:33 +0000 (GMT)
	(envelope-from ache@nagual.pp.ru)
Received: from nagual.pp.ru (ache@localhost [127.0.0.1])
	by nagual.pp.ru (8.13.4/8.13.4) with ESMTP id j5Q2HWl6002078;
	Sun, 26 Jun 2005 06:17:32 +0400 (MSD)
	(envelope-from ache@nagual.pp.ru)
Received: (from ache@localhost)
	by nagual.pp.ru (8.13.4/8.13.4/Submit) id j5Q2HVaC002077;
	Sun, 26 Jun 2005 06:17:31 +0400 (MSD) (envelope-from ache)
Date: Sun, 26 Jun 2005 06:17:30 +0400
From: Andrey Chernov <ache@freebsd.org>
To: Mike Silbersack <silby@silby.com>
Message-ID: <20050626021729.GA1991@nagual.pp.ru>
Mail-Followup-To: Andrey Chernov <ache@freebsd.org>,
	Mike Silbersack <silby@silby.com>, Peter Holm <peter@holm.cc>,
	current@freebsd.org, Thierry Herbelot <thierry@herbelot.com>
References: <20050624212729.C537@odysseus.silby.com>
	<20050625133052.GA23599@peter.osted.lan>
	<1437.64.215.82.94.1119717536.squirrel@webmail2.pair.com>
	<20050625173217.GA24306@peter.osted.lan>
	<20050625171206.S935@odysseus.silby.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20050625171206.S935@odysseus.silby.com>
User-Agent: Mutt/1.5.9i
Cc: current@freebsd.org, Thierry Herbelot <thierry@herbelot.com>
Subject: Re: Mbuf double-free guilty party detection patch
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 26 Jun 2005 02:17:34 -0000

On Sat, Jun 25, 2005 at 05:13:18PM -0500, Mike Silbersack wrote:
> Here's a fixed version of the patch that should return the correct 

I got lots of:

Jun 26 05:22:44 pobrecita kernel: This memory last freed by: c04d7a88
Jun 26 05:22:44 pobrecita kernel: Memory modified after free 0xc2458900(256) val=0 @ 0xc2458930

with "@ 0xc2458930" part changed and "last freed" addresses are:
c04d7a88, c04dbe9d, c04dc490, c04dffff, c04e02bc

kgdb /sys/i386/compile/POBRECITA/kernel.debug /dev/mem
(kgdb) x 0xc04d7a88
0xc04d7a88 <m_freem+24>:        0xf475c085
(kgdb) x 0xc04dffff
0xc04dffff <sbcompress+431>:    0x66ebc389
(kgdb) x 0xc04dc490
0xc04dc490 <soreceive+2640>:    0x8908558b
(kgdb) x 0xc04e02bc
0xc04e02bc <sbdrop_locked+236>: 0xdb85c189
(kgdb) x 0xc04dbe9d
0xc04dbe9d <soreceive+1117>:    0x8908558b

Is it helps?

-- 
http://ache.pp.ru/