My Oracle Support Banner

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

Last updated on OCTOBER 20, 2022

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Linux OS - Version Oracle Linux 6.0 to Oracle Linux 6.10 [Release OL6 to OL6U10]
Linux x86-64
Review Currency at 7th.Apr 2015


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.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 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

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.