From owner-freebsd-current@FreeBSD.ORG Fri Jan 20 12:53:08 2006 Return-Path: X-Original-To: freebsd-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 2E4C516A41F; Fri, 20 Jan 2006 12:53:08 +0000 (GMT) (envelope-from q@galgenberg.net) Received: from wrzx35.rz.uni-wuerzburg.de (wrzx35.rz.uni-wuerzburg.de [132.187.3.35]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3F82843D45; Fri, 20 Jan 2006 12:53:06 +0000 (GMT) (envelope-from q@galgenberg.net) Received: from amavis.mail (amavis1.rz.uni-wuerzburg.de [132.187.3.46]) by wrzx35.rz.uni-wuerzburg.de (Postfix) with ESMTP id 01E86E5415; Fri, 20 Jan 2006 13:53:05 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by amavis.mail (Postfix) with ESMTP id E4D422230; Fri, 20 Jan 2006 13:53:04 +0100 (CET) Received: from wrzx28.rz.uni-wuerzburg.de (wrzx28.rz.uni-wuerzburg.de [132.187.3.28]) by amavis.mail (Postfix) with ESMTP id C1ED4FDF; Fri, 20 Jan 2006 13:53:04 +0100 (CET) Received: from frodo.galgenberg.net (wwsx14.win-screen.uni-wuerzburg.de [132.187.253.14]) by wrzx28.rz.uni-wuerzburg.de (Postfix) with ESMTP id B6F9214625F; Fri, 20 Jan 2006 13:53:02 +0100 (CET) Received: from coyote.q.local (gb-21-237.galgenberg.net [172.16.21.237]) by frodo.galgenberg.net (8.13.1/8.13.1) with ESMTP id k0KCr259053195; Fri, 20 Jan 2006 13:53:02 +0100 (CET) (envelope-from q@galgenberg.net) Received: from roadrunner.q.local (roadrunner.q.local [192.168.0.148]) by coyote.q.local (8.13.4/8.13.4) with ESMTP id k0KCr1xS083395; Fri, 20 Jan 2006 13:53:01 +0100 (CET) (envelope-from q@galgenberg.net) Received: from roadrunner.q.local (localhost [127.0.0.1]) by roadrunner.q.local (8.13.4/8.13.4) with ESMTP id k0KCr1CS008180; Fri, 20 Jan 2006 13:53:01 +0100 (CET) (envelope-from q@galgenberg.net) Received: (from q@localhost) by roadrunner.q.local (8.13.4/8.13.4/Submit) id k0KCr1TR008179; Fri, 20 Jan 2006 13:53:01 +0100 (CET) (envelope-from q@galgenberg.net) Date: Fri, 20 Jan 2006 13:53:01 +0100 From: Ulrich Spoerlein To: Joe Marcus Clarke Message-ID: <20060120125301.GB1088@galgenberg.net> Mail-Followup-To: Joe Marcus Clarke , freebsd-current@freebsd.org References: <6BD97F93-5E85-4A5A-8751-DC0C0382B916@FreeBSD.org> <1137741767.75264.27.camel@shumai.marcuscom.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="GyRA7555PLgSTuth" Content-Disposition: inline In-Reply-To: <1137741767.75264.27.camel@shumai.marcuscom.com> X-Virus-Scanned: by amavisd-new at uni-wuerzburg.de X-Spam-Status: No, hits=0.0 tagged_above=0.0 required=8.0 tests= X-Spam-Level: Cc: freebsd-current@freebsd.org Subject: Re: Typical malloc-related application bugs X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Fri, 20 Jan 2006 12:53:08 -0000 --GyRA7555PLgSTuth Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Joe Marcus Clarke wrote: > On Thu, 2006-01-19 at 23:10 -0800, Jason Evans wrote: > > 2) Out-of-bounds writes. [...] >=20 > I'm seeing a lot of this when I run gnome-system-monitor. There appears > to be a bug in libgtop, but I don't know how to make these messages > fatal in order to produce a backtrace I can use to narrow down where the > problem lies. What can I do to isolate where in the code the redzone > corruption is occurring? Try running it in valgrind first, if you're lucky, it will immediately point you to the faulty spot. Ulrich Spoerlein --=20 PGP Key ID: 20FEE9DD Encrypted mail welcome! Fingerprint: AEC9 AF5E 01AC 4EE1 8F70 6CBD E76E 2227 20FE E9DD Which is worse: ignorance or apathy? Don't know. Don't care. --GyRA7555PLgSTuth Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFD0N0t524iJyD+6d0RAge7AJoC6SgHR+pmOJ2zj1nGFhvMdXimqQCfTq2m WRjhdNbo2FxTyD5262mKZiQ= =u6RC -----END PGP SIGNATURE----- --GyRA7555PLgSTuth--