From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1BiJ9G-000620-HJ for user-mode-linux-devel@lists.sourceforge.net; Wed, 07 Jul 2004 13:36:10 -0700 Received: from mail.scgiservices.com ([198.107.3.67]) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:AES256-SHA:256) (Exim 4.34) id 1BiJ9G-0008Tl-6A for user-mode-linux-devel@lists.sourceforge.net; Wed, 07 Jul 2004 13:36:10 -0700 Received: from SCG2 (dyn170.CONET.OUS.EDU [140.211.15.170]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mail.scgiservices.com (Postfix) with ESMTP id 08DA52A3A5 for ; Wed, 7 Jul 2004 13:36:07 -0700 (PDT) From: "Anthony Brock" Subject: RE: [uml-devel] uml_mconsole issue Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" In-Reply-To: <200407071914.06387.blaisorblade_spam@yahoo.it> Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 7 Jul 2004 13:36:03 -0700 Content-Transfer-Encoding: quoted-printable To: user-mode-linux-devel@lists.sourceforge.net Obviously, I'm doing something wrong. I tried following Blaisor's instructions for a backtrace as posted on 2004-06-14 at: http://marc.theaimsgroup.com/?l=3Duser-mode-linux-user&m=3D108726561303235&= w=3D2 However, I'm seeing the following: $ TMP=3D/dev/shm gdb linux-2.6.7-32bit-debug GNU gdb 6.1 Copyright 2004 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 details. This GDB was configured as "i586-suse-linux"...Using host libthread_db library "/lib/tls/libthread_db.so.1". (gdb) set args umid=3Dbind2 <... junk deleted ...> (gdb) handle SIGUSR1 pass nostop noprint Signal Stop Print Pass to program Description SIGUSR1 No No Yes User defined signal 1 (gdb) handle SIGSEGV pass nostop noprint Signal Stop Print Pass to program Description SIGSEGV No No Yes Segmentation fault (gdb) break panic Breakpoint 1 at 0xa0030d18: file kernel/panic.c, line 58. (gdb) run Starting program: linux-2.6.7-32bit-debug umid=3Dbind2 mem=3D64M <... junk deleted ...> Detaching after fork from child process 9635. Checking for the skas3 patch in the host...found Checking for /proc/mm...found Detaching after fork from child process 9636. Detaching after fork from child process 9637. Detaching after fork from child process 9638. Detaching after fork from child process 9639. Linux version 2.6.7-1um-debug (root@vs1) (gcc version 3.3.3 (SuSE Linux)) #3 Wed Jul 7 13:09:26 PDT 2004 On node 0 totalpages: 16384 <... startup junk deleted ...> dns2 login: Kernel panic: Segfault with no mm Program exited with code 01. (gdb) bt No stack. (gdb) continue The program is not being run. (gdb) quit $ How do I acquire the backtrace? I must be missing something obvious. Thanks in advance! Tony > -----Original Message----- > From: BlaisorBlade [mailto:blaisorblade_spam@yahoo.it] > Sent: Wednesday, July 07, 2004 10:14 AM > To: Anthony Brock; user-mode-linux-devel@lists.sourceforge.net > Subject: Re: [uml-devel] uml_mconsole issue > > > Alle 07:14, mercoled=EC 7 luglio 2004, Anthony Brock ha scritto: > > Let me know if you require more detail and what specific steps I should > > take to help trouble-shoot this. Thanks in advance! > Could you try taking a "backtrace" from the UML? I've no time for now to > explain it, but it has been explained tons of times on this ML... > search for > "backtrace" on the marc.theaimsgroup.com archives! See also the > "debugging > kernel" page (the subsection about skas). > -- > Paolo Giarrusso, aka Blaisorblade > Linux registered user n. 292729 > > ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 -=20 digital self defense, top technical experts, no vendor pitches,=20 unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel