[Crash-utility] Redhat 5.11 dump

[Ilan Schwarts]

Hi,
A production machine with Red Hat Enterprise Linux Server release 5.11
(Tikanga) kernel 2.6.18-431.el5 crashed.
I received vmcore, Since I dont have access to machine, and I need to
open the vmcore to analyze the dump, I have downloaded CentOS 5.11,
since centos 5.11 is EOL, I downloaded the 2.6.18-431.el5 kernel
manually, with debuginfo and debuginfo-common and installed them, so
far - seems ok.

I am trying to get call stack of the dump time, i get error:
[root at centos511test kernel]# crash vmcore
/usr/lib/debug/lib/modules/`uname -r`/vmlinux

crash 5.1.8-3.el5.centos
Copyright (C) 2002-2011  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: page excluded: kernel virtual address: ffffffff804d3ae0  type: "possible"
WARNING: cannot read cpu_possible_map
crash: page excluded: kernel virtual address: ffffffff804735e0  type: "present"
WARNING: cannot read cpu_present_map
crash: page excluded: kernel virtual address: ffffffff8046e260  type: "online"
WARNING: cannot read cpu_online_map
crash: page excluded: kernel virtual address: ffffffff80475210  type: "xtime"
[root at centos511test kernel]#

Any thoughts ? how can I continue ?

Thanks alot