Firmware-assisted dump (fadump) fails to register after a Dynamic Logical Partition (DLPAR) memory remove operation

This document (7021013) is provided subject to the disclaimer at the end of this document.

Environment

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

Situation

Firmware-assisted dump (fadump) might fail to register after a DLPAR memory remove operation.

Resolution

To avoid this, make sure the LMBs removed do not fall in the memory region starting from real address zero until about more than twice the memory reserved for fadump. For example, on a system with LMB size 256MB and 4GB reserved for fadump, make sure LMBs that make up the first 8.25GB memory (2*4GB + an additional LMB) are not removed, for fadump registration to succeed.

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:7021013
  • Creation Date: 22-Jun-2017
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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