XEN: kernel dump is not working correctly on Dom0

This document (7015016) is provided subject to the disclaimer at the end of this document.

Environment


SUSE Linux Enterprise Server 11 Service Pack 3 (SLES 11 SP3)
SUSE Linux Enterprise Server 11 Service Pack 2 (SLES 11 SP2)

Situation

After triggering kdump on Dom0, system just freezes and nothing happens even after long time.

Resolution

It is important to verify whether the default kernel is installed on the machine as kdump is working with default and not with the Xen kernel:

systemDom0:~ # rpm -qa | grep kernel                                                                                                                                       
kernel-xen-3.0.101-0.21.1
kernel-default-base-3.0.101-0.21.1
kernel-xen-base-3.0.101-0.21.1
kernel-default-3.0.101-0.0.21.1


When default kernel is missing, please install appropriate default kernel version and trigger the kdump once again.

Cause

Kdump is using the default kernel to generate a dump.

Additional Information

See TID 7001383: Configure XEN Dom0 for a kernel dump for details about Dom0 kdump configuration

Disclaimer

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:7015016
  • Creation Date: 06-May-2014
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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