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06/20/2009 at 06:57PM PDT, ID: 24508918
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9.4

How do I configure kdump?

Asked by tomp_gl in Linux Setup, Linux

Tags: linux kernel panic kdump kexec-tools crash

Hi,

I have a busy linux box (Centos 5.3) that stops responding at peak time and I'm trying to figure out why.

I'm trying to configure the kdump utility, and did the following:

$ yum install kexec-tools
$ chkconfig kdump on
$ reboot

$ sync
$ echo c > /proc/sysrq-trigger

At this point the system becomes unresponsive and after 15 minutes of waiting I cycled the power on the box.

I was following this tutorial:
http://www.novell.com/support/viewContent.do?externalId=3374462&sliceId=1

I have some questions:

1. Should I keep trying to test kdump is working or assume it will work when the system crashes again?
2. My /var partition isn't big enough to hold an entire image of the physical memory, if that is what kdump does - what should I do?
3. Are there other crash inspection tools available? /var/log/messages rarely yields any useful information.

Thanks
[+][-]06/21/09 07:19 AM, ID: 24677445

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About this solution

Zones: Linux Setup, Linux
Tags: linux kernel panic kdump kexec-tools crash
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Solution Provided By: ravenpl
Participating Experts: 3
Solution Grade: B
 
 
[+][-]06/21/09 08:12 AM, ID: 24677596

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[+][-]06/21/09 09:27 PM, ID: 24679679

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[+][-]06/21/09 11:36 PM, ID: 24680089

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