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kdump setup on IBM POWER9

This document (7022751) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 11 Service Pack 4 (SLES 11 SP4)


Due to the nature of the kdump environment, it is possible that an IBM POWER9 machine will hang or fail to reboot after a crash,  and the vmcore may not be captured.


To avoid these kinds of problems, the following setup steps are suggested: 

1. Edit /etc/sysconfig/kdump file and set KDUMP_COMMANDLINE_APPEND to 
"maxcpus=1 noirqdistrib irqpoll"

2. Restart kdump service to pick up the changes:
$ service boot.kdump restart


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7022751
  • Creation Date: 19-Mar-2018
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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