topic kernel panic in Operating System - Linux

kernel panic

Tammy Liang — Fri, 08 Sep 2006 15:25:59 GMT

Does redhat es4 create something like hpux core dump files after system hung, so I can analyze the core dump to see why system hung?

Tks.

Tammy

Re: kernel panic

Ivan Ferreira — Fri, 08 Sep 2006 15:35:25 GMT

There is a feature called netdump that allows to send a dump over the network to a dump server.

http://www.redhat.com/support/wpapers/redhat/netdump/

Kernel Oops can be analyzed by using the information registered in the syslog with the ksymoops program.

Re: kernel panic

sandeep_raman — Fri, 08 Sep 2006 16:01:04 GMT

Hello Tammy,

Detailed information about linux dump file in attached file.

SRH

Re: kernel panic

Tammy Liang — Mon, 11 Sep 2006 14:26:37 GMT

Ivan, I do not see syslog file. However, I did see some kernel messages in messages file. I just want to dump the crash to local server, instead of netserver.
What is ksymoops? RPM from redhat?

Sandeep, I can not open your attached file.

Thanks for your reply...

Re: kernel panic

Ivan Ferreira — Mon, 11 Sep 2006 14:39:55 GMT

Just to make it more clear, "syslog" is not a file, is the daemon that registers the events to the messages file. That is, the syslog daemon write events into the files configured in /etc/syslog.conf. One of the files is /var/log/messages.

You can't dump a crash to the localserver. The messages file is all that you have.

You could post your panic string to see if someone can help. Normally, kernel panics are produced by bad modules. You should ensure that you have the latest kernel and modules.

Re: kernel panic

Tammy Liang — Mon, 11 Sep 2006 15:02:44 GMT

Thanks Ivan. I see syslogd running and log to messages file. I upgrade to latest kernel.
Hopely won't get kernel panic again with this latest redhat es4 kernel...