From owner-freebsd-hackers@FreeBSD.ORG Fri Oct 9 15:01:37 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C88721065676 for ; Fri, 9 Oct 2009 15:01:37 +0000 (UTC) (envelope-from mel.flynn+fbsd.hackers@mailing.thruhere.net) Received: from mailhub.rachie.is-a-geek.net (rachie.is-a-geek.net [66.230.99.27]) by mx1.freebsd.org (Postfix) with ESMTP id 91F2C8FC20 for ; Fri, 9 Oct 2009 15:01:37 +0000 (UTC) Received: from smoochies.rachie.is-a-geek.net (mailhub.rachie.is-a-geek.net [192.168.2.11]) by mailhub.rachie.is-a-geek.net (Postfix) with ESMTP id 2D9E57E853; Fri, 9 Oct 2009 07:01:49 -0800 (AKDT) From: Mel Flynn To: freebsd-hackers@freebsd.org Date: Fri, 9 Oct 2009 17:01:34 +0200 User-Agent: KMail/1.12.1 (FreeBSD/8.0-RC1; KDE/4.3.1; i386; ; ) References: <200910090015.24175.mel.flynn+fbsd.hackers@mailing.thruhere.net> <86skds7vqi.fsf@ds4.des.no> <200910091650.04231.mel.flynn+fbsd.hackers@mailing.thruhere.net> In-Reply-To: <200910091650.04231.mel.flynn+fbsd.hackers@mailing.thruhere.net> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message-Id: <200910091701.34788.mel.flynn+fbsd.hackers@mailing.thruhere.net> Cc: Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?= Subject: Re: Running a program through gdb without "interfering" X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Oct 2009 15:01:37 -0000 On Friday 09 October 2009 16:50:04 Mel Flynn wrote: > On Friday 09 October 2009 11:38:29 Dag-Erling Sm=F8rgrav wrote: > > Mel Flynn writes: > > > [...] sudo *sometimes* segfaults [...] However, it doesn't dump core > > > > sudo(1) is setuid root. You need to set kern.sugid_coredump to get it > > to dump core. >=20 > It still segfaults and doesn't dump: > Oct 9 04:34:18 smell kernel: pid 39476 (sudo), uid 0: exited on signal 11 > Oct 9 04:36:32 smell kernel: pid 79657 (sudo), uid 0: exited on signal 11 > Oct 9 04:36:43 smell kernel: pid 82390 (sudo), uid 0: exited on signal 11 > Oct 9 04:51:46 smell kernel: pid 3601 (sudo), uid 0: exited on signal 11 >=20 > find / -name '*.core' in the jail does not yield anything. =46YI, there's one read-only mount into the jail, being /usr/src. I don't s= ee a=20 reason given the commands it segfaults on, for $cwd to be below that.For=20 example it segfaulted on sudo pkg_delete glproto2. Thought I'd mention it to rule it out.=20 =2D-=20 Mel