Core power limit notification messages flooding the logs

This document (7015890) is provided subject to the disclaimer at the end of this document.

Environment

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

Situation

The log contains multiple entries such as:

CPU1: Core power limit notification (total events = 1)
CPU7: Package power limit notification (total events = 1)
CPU2: Core power limit normal

Resolution

These messages can be safely ignored.

However, if their presence is undesirable, they can be prevented by updating to
kernel-3.0.101-0.40.1 or later and using the boot parameter 'int_pln_disable'

Cause

Power Limit Notification is a feature that was added to the Sandy Bridge processors from Intel. The notification does not indicate a problem.

The occurrence of these messages is routine power limit notification is routine, and the system does not need to be reporting the messages. They can be ignored.

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:7015890
  • Creation Date: 13-Nov-2014
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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