From owner-freebsd-questions@FreeBSD.ORG Sun Apr 13 20:43:07 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2F62F37B401 for ; Sun, 13 Apr 2003 20:43:07 -0700 (PDT) Received: from out006.verizon.net (out006pub.verizon.net [206.46.170.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 191AC43FA3 for ; Sun, 13 Apr 2003 20:43:06 -0700 (PDT) (envelope-from leblanc@keyslapper.org) Received: from keyslapper.org ([68.160.24.154]) by out006.verizon.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20030414034305.EOBV15325.out006.verizon.net@keyslapper.org> for ; Sun, 13 Apr 2003 22:43:05 -0500 Received: from keyslapper.org (localhost [127.0.0.1]) by keyslapper.org (8.12.8p1/8.12.3) with ESMTP id h3E3hAso024147 for ; Sun, 13 Apr 2003 23:43:10 -0400 (EDT) (envelope-from leblanc@keyslapper.org) Received: (from leblanc@localhost) by keyslapper.org (8.12.8p1/8.12.8/Submit) id h3E3h9oM024146 for questions@FreeBSD.ORG; Sun, 13 Apr 2003 23:43:09 -0400 (EDT) Date: Sun, 13 Apr 2003 23:43:09 -0400 From: Louis LeBlanc To: FreeBSD Users Message-ID: <20030414034308.GB51491@keyslapper.org> Mail-Followup-To: FreeBSD Users References: <3E99D109.760DBD0D@jaymax.com> <001401c30204$8353d560$ca0110ac@vinyl.tkvbp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=unknown-8bit Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <001401c30204$8353d560$ca0110ac@vinyl.tkvbp.com> User-Agent: Mutt/1.5.4i X-Authentication-Info: Submitted using SMTP AUTH at out006.verizon.net from [68.160.24.154] at Sun, 13 Apr 2003 22:43:04 -0500 Subject: Re: SIGNAL 11 ==> core dump X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: freebsd-questions@FreeBSD.ORG List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Apr 2003 03:43:07 -0000 On 04/13/03 05:34 PM, Kliment Andreev sat at the `puter and typed: > > What is the best method for doing a 'core debug' with BSD. Which is > > SIGNAL 11, is it SIGSEGV? > > Signal 11 usually means that something is wrong with your hardware settings. > Check all IRQ conflicts. If there aren't any, probably something is wrong > with the memory. Uh, don't I wish. Any C or C++ program that tries to dereference a null pointer, overwrite the end of a buffer, or free memory that has already been freed can easily cause a signal 11. And they aren't always easy to track down either. But yeah. Hardware is usually the problem if you're talking about different processes going SEGV without any discernable pattern. Lou -- Louis LeBlanc leblanc@keyslapper.org Fully Funded Hobbyist, KeySlapper Extrordinaire :) http://www.keyslapper.org ԿԬ snappy repartee: What you'd say if you had another chance.