Re: [Crash-utility] live crash(4.0-5.0.3) invocation fails on rhel5
----- "Nipul Gandhi" <noreplyever(a)yahoo.com> wrote:
Hi all -
What am I doing wrong here ?
[root@wal-rhel5-04 kern]# uname -a
Linux wal-rhel5-04 2.6.18-92.el5 #1 SMP Tue Apr 29 13:16:15 EDT 2008
x86_64 x86_64 x86_64 GNU/Linux
Using the installed by this debuginfo RPM:
kernel-debuginfo-common-2.6.18-92.el5
kernel-debug-debuginfo-2.6.18-92.el5
[root@wal-rhel5-04 kern]# crash /usr/lib/debug/lib/modules/2.6.18-92.el5debug/vmlinux
...
WARNING: /usr/lib/debug/lib/modules/2.6.18-92.el5debug/vmlinux
and /proc/version do not match!
WARNING: /proc/version indicates kernel version: 2.6.18-92.el5
crash: please use the vmlinux file for that kernel version, or try using
the System.map for that kernel version as an additional argument.
[root@wal-rhel5-04 tmp]# cat /proc/version
Linux version 2.6.18-92.el5 (brewbuilder(a)ls20-bc2-13.build.redhat.com)
(gcc version 4.1.2 20071124 (Red Hat 4.1.2-41)) #1 SMP Tue Apr 29
13:16:15 EDT 2008
I tried using the System.Map as well as argument.....but then it segfaulted.
# crash /usr/lib/debug/lib/modules/2.6.18-92.el5debug/vmlinux
/boot/System.map-2.6.18-92.el5
Segmentation fault (core dumped)
Thanks in advance for any help.
You're invoking crash with the "2.6.18-92.el5debug" kernel, but the live
system is running the "2.6.18-92.el5". They are completely different
kernels. (The "debug" variant has all sorts of debugging configs turned
on)
So, for example, on an x86_64 machine, you would need to install:
kernel-debuginfo-2.6.18-92.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-92.el5.x86_64.rpm
After you do that, you only need to enter "crash" alone on the command line,
and it will find the vmlinux file automatcally based upon what it sees
in /proc/version.
Dave