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How to Configure "kdump" on Oracle Linux 6 (Doc ID 1507025.1)

Last updated on NOVEMBER 28, 2018

Applies to:

Linux OS - Version Oracle Linux 6.2 with Unbreakable Enterprise Kernel [2.6.32] and later
Oracle Cloud Infrastructure - Version N/A and later
Information in this document applies to any platform.
Review Currency at 7th.Apr 2015

Goal

kdump is an advanced crash dumping mechanism. When enabled, the system is booted from the context of another kernel. This second kernel reserves a small amount of memory, and its only purpose is to capture the core dump image in case the system crashes. Since being able to analyze the core dump helps significantly to determine the exact cause of the system failure, it is strongly recommended to have this feature enabled. 

This Note explains how to configure, test, and use the kdump service in ol6.
 

Solution

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In this Document
Goal
Solution
 1.  Install the kexec-tools package if not already installed
 2. Configuring kdump
 2.1 Configuring  Memory Usage
 2.2. Modify  items in configuration file /etc/kdump.conf
 3. Start  kdump daemon
 4.  kdump configuration file - /etc/sysconfig/kdump
 5.Testing  kdump
References


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