From owner-freebsd-current@FreeBSD.ORG Sat Aug 2 17:07:31 2003 Return-Path: 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 39E0037B401 for ; Sat, 2 Aug 2003 17:07:31 -0700 (PDT) Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by mx1.FreeBSD.org (Postfix) with ESMTP id 25ED343F3F for ; Sat, 2 Aug 2003 17:07:29 -0700 (PDT) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id 3E6C0526A4; Sun, 3 Aug 2003 09:37:27 +0930 (CST) Date: Sun, 3 Aug 2003 09:37:27 +0930 From: Greg 'groggy' Lehey To: Eivind Olsen Message-ID: <20030803000727.GG95375@wantadilla.lemis.com> References: <1079.192.168.0.3.1059811884.squirrel@webmail.aminor.no> <3F2B803C.21D38E0B@mindspring.com> <1886375.1059842833@[192.168.0.2]> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="xjyYRNSh/RebjC6o" Content-Disposition: inline In-Reply-To: <1886375.1059842833@[192.168.0.2]> User-Agent: Mutt/1.4i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 cc: current@freebsd.org Subject: Re: Yet another crash in FreeBSD 5.1 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Sun, 03 Aug 2003 00:07:31 -0000 --xjyYRNSh/RebjC6o Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Saturday, 2 August 2003 at 16:47:13 +0200, Eivind Olsen wrote: > --On 2. august 2003 02:11 -0700 Terry Lambert > wrote: >>> db> trace >>> g_dev_strategy(c2156024,c2153800,0,cfb528d0,c2099eca) at >>> g_dev_strategy+0x29 launch_requests(c299bf00,0,10000,ffffffff,47) at >>> launch_requests+0x448 vinumstart(c5ada2d0,0,c22ab000,cfb5294c,c02e5bc6) >>> at vinumstart+0x2b2 >> gdb -k kernel.debug >> (gdb) list *(g_dev_strategy+29) >> [ ... ] >> (gdb) list *(launch_requests+448) >> [ ... ] >> (gdb) list *(vinumstart+2b2) >> [ ... ] >> Will give you the exact source lines involved, assuming you >> built a debug kernel. > > I did. At least I've tried to. :) > (I have a kernel.debug which was compiled at the same time as the real > kernel I'm using, and it's approx. 30MB in size). > >> You don't actually need a crash dump to debug a stack traceback. > > This is what I found by using those commands you mentioned: > > eivind@vimes:~/tmp/debug > gdb -k kernel.debug > GNU gdb 5.2.1 (FreeBSD) > Copyright 2002 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you = are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for detail= s. > This GDB was configured as "i386-undermydesk-freebsd"... > (kgdb) list *(g_dev_strategy+29) This is almost certainly the wrong function. At the very list you should look at the arguments passed to it. > (kgdb) list *(launch_requests+448) > No symbol "launch_requests" in current context. > (kgdb) list *(vinumstart+2b2) > No symbol "vinumstart" in current context. > (kgdb) Read the links I just sent you. You haven't loaded the Vinum symbols. > If anyone wants to take a look at this themselves I've put the compressed > (gzip) debug-kernel available on > http://eivind.aminor.no/debug/kernel.debug.gz > NOTE! It's approx. 13MB compressed! The kernel's not much use by itself. =20 Greg -- See complete headers for address and phone numbers --xjyYRNSh/RebjC6o Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (FreeBSD) iD8DBQE/LFI/IubykFB6QiMRAopKAKCf2G3x37Ydoc8imOpr+io7M9K1QwCeIimH 2dYcP+7C1iWau/SLgabPiR8= =LFJw -----END PGP SIGNATURE----- --xjyYRNSh/RebjC6o--