Re: [Crash-utility] netdump issue
----- "Anirudh Srinivasan" <srianirudh(a)gmail.com> wrote:
I am implementing a netdump . I crashed one sever and got the vmcore
file in /var/crash/vmcore , then i checked the kernel version through
strings vmcore | fgrep -m1 'Linux'
Linux version 2.4.21-40.ELsmp ( bhcompile(a)hs20-bc1-7.build.redhat.com
) (gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-54)) #1 SMP Thu Feb
2 22:22:39 EST 2006
So now while installing the kernel-debuginfo , it should match the
version above i.e something like
"kernel-debuginfo.2.4.21.40.ELsmp.i368.rpm"
But i installed the closest one and that was
kernel-debuginfo.2.4.21.40.EL.i386.rpm but after installing them i
should have /usr/lib/debug/module/vmlinux , which i could'nt see them
.
OK, so you're running -- and have crashed -- a RHEL3 i686 smp kernel,
and the vmcore pinpoints the version as version 2.4.21-40.ELsmp. So
you need to install the kernel-debuginfo-2.4.21-40.EL.i686.rpm (not
the "i386" version), which contains the vmlinux debug files for that
kernel version:
$ rpm -qpl kernel-debuginfo-2.4.21-40.EL.i686.rpm | grep vmlinux
/usr/lib/debug/boot/vmlinux-2.4.21-40.EL.debug
/usr/lib/debug/boot/vmlinux-2.4.21-40.ELhugemem.debug
/usr/lib/debug/boot/vmlinux-2.4.21-40.ELsmp.debug
$
And the relevant file in your case would be located in
/usr/lib/debug/boot/vmlinux-2.4.21-40.ELsmp.debug.
Can anyone give me the link to the rpm i am looking for , or suggest
some idea. ( the server that i am dumping vmcore is version 5 )
I have bunch of server with version 2 and version 3 and version 4 in
my production environment for which i have to configure netdump to
collect the vmcore in version 5 server .
That's fine -- one way you can get the specific debuginfo package
you need is by going to my people page:
http://people.redhat.com/anderson
1. Click on the "Red Hat Enterprise Linux debuginfo RPMs" link.
2. On that next page, in the "Red Hat Enterprise Linux 3" box,
click on the "AS: i386" link.
That will bring you to the ftp site that contains *all* RHEL3
packages, so you have to search for:
kernel-debuginfo-2.4.21-40.EL.i686.rpm
Again, make sure you get the "i686" version.
Hope this helps,
Dave