----- Original Message ----- > Hi, > > > > > Well, that's your first mistake... > > > > Thanks for pointing it out :) > .. > [snip] > .. > > Like the error message indicates, the vmlinuz-2.6.32.12-crash-crash > > file is not a supported file format. Never has been, never will > > be... > > > > I tried with vmlinux and it seems ok. But got another error > hltncra110731:/home/adil # crash linux-2.6.32.12-0.7/vmlinux > /var/crash/2012-02-08-14\:13/vmcore > > -------------------- > crash 5.0.1 > Copyright (C) 2002-2010 Red Hat, Inc. > Copyright (C) 2004, 2005, 2006 IBM Corporation > Copyright (C) 1999-2006 Hewlett-Packard Co > Copyright (C) 2005, 2006 Fujitsu Limited > Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. > Copyright (C) 2005 NEC Corporation > Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc. > Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc. > This program 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. Enter "help copying" to see the conditions. > This program has absolutely no warranty. Enter "help warranty" for > details. > > GNU gdb (GDB) 7.0 > Copyright (C) 2009 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later > <http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "x86_64-unknown-linux-gnu"... > > crash: seek error: kernel virtual address: ffffffff81827aa0 type: "kernel_config_data" > WARNING: cannot read kernel_config_data > crash: seek error: kernel virtual address: ffffffff8181a660 type: "cpu_possible_mask" > hltncra110731:/home/adil # > ---------------------------------- > > > > Also, do yourself a favor, and upgrade your crash utility version > > from crash-5.0.1, which is two years old. > > I am using for learning purpose. So i guess this version should be Ok > to use for learning purpose. No, that's really not true. crash-5.0.1 is two years old, which is ancient by crash standards. And it's very easy to upgrade: $ wget http://people.redhat.com/anderson/crash-6.0.3.tar.gz ... $ cd crash-6.0.3 $ make ... $ As far as the "seek errors" you're seeing, I don't know what's happening, other than crash can't find the physical address page associated with those unity-mapped kernel virtual addresses in the vmcore. But I'm sorry -- I don't spend time debugging issues encountered with obsolete crash versions. If you can upgrade, and then post the output of: $ crash -d8 linux-2.6.32.12-0.7/vmlinux /var/crash/2012-02-08-14\:13/vmcore there will be a plethora of debug output that can help determine the problem. Dave -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
