kernel panic with x86 kernel on AMD system with 8 cores or more in a CPU package

This document (7003498) is provided subject to the disclaimer at the end of this document.

Environment


SUSE Linux Enterprise Server 11
x86 architecture (32 bit) only

Situation

When booting a 32 bit kernel on an AMD system with 8 cores or more in a CPU package (e.g. during installation), the boot process stopps with the following error message:

Error: Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (16 vs 0)

The x86_64 version of SLES 11 is not affected by this problem.

Resolution

The problem can be solved by adding apic=bigsmp as a boot parameter.

Additional Information

If other APIC related symptoms on SLES11 x86 systems (systems with a lot of cores) are experienced, it would be also worth trying the above boot parameter.

The error might be fixed in a future Service Pack.

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:7003498
  • Creation Date: 10-Jun-2009
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Desktop
    • SUSE Linux Enterprise Server

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