Hi
you can make core dump at kernel panic moment, i.e when application cretaes kernel panic.
Before you start, you need :
- to install the "crash" rpm
- to setup either diskdump or netdump to capture a panic crash dump to either local disk or a network dump server.
Netdump captures a panic crash dump to r a network dump server.
You have to setup a dump server and local dump client.
On the dump server:
1. /sbin/chkconfig netdump-server on
2. /sbin/service netdump-server start
3. Set the password on the "netdump" account: remember this password because you'll need to tell netdump on the client this password.
On the dump client:
1. /sbin/chkconfig netdump on
2. /sbin/service netdump propagate
This is where you'll be asked for the password for the netdump account and ssh public keys for the client are put on the server.
3. /sbin/service netdump start
Check both netdump and netconsole modules are loaded by using the "lsmod" command.
Diskdump capturse a panic crash dump to local disk and requires a dump partition to work.
Instructions for setting up diskdump and other about dump are in following link:
http://magazine.redhat.com/2007/08/1...dump-analysis/
Regards
