Kernel oops during memory intensive operations

This document (7000126) is provided subject to the disclaimer at the end of this document.

Environment

Novell SUSE Linux Enterprise Server 9
HP DL370 G5
32 GB RAM
2.33 quad core processor

Situation

After doubling the amount of RAM in the server from 16GB to 32GB the kernel will oops during memory intensive operations. If they go back to 16GB they do not encounter the problem.

Resolution

By enabling hugepage support in /proc/sys/vm/nr_hugepages the server is able to swap out to disk without the kernel oops.

To enable hugepage support you can do the following 'echo 2048 > /proc/sys/vm/nr_hugepages'

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:7000126
  • Creation Date: 17-Apr-2008
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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