Field Notice: FN - 70110 - Memory Leak Issue on C3850/C3650 Switches That Run Polaris Software Version 16.3.3 or Earlier - Software Upgrade Recommended

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Updated:February 7, 2018
Document ID:FN70110

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Notice

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Revision History

Revision Publish Date Comments
1.0
06-Feb-18
Initial Release

Products Affected

Affected OS Type Affected Release Affected Release Number Comments
NON-IOS
16
16.3.1a, 16.1.1, 16.3.3, 16.1.2, 16.3.1, 16.1.0, 16.2.1, 16.1.3, 16.3.2, 16.2.2

Defect Information

Defect ID Headline
CSCvd45973 Catalyst 3850/3650 - memory leak in platform_mgr process

Problem Description

Catalyst 3850/3650 switches that run Polaris Software Version 16.3.3 or earlier might exhibit a memory leakage issue which indicates an increase of memory usage by platform_mgr process.

Background

The memory leakage observed in the buffer is related to a specific queue that does not get free after the message is sent to Cisco IOS®.

Problem Symptom

One of these messages will be displayed in the logs:

%PLATFORM-4-ELEMENT_WARNING:Switch 1 R0/0: smand:  1/RP/0: Used Memory value 91% exceeds warning level 90%

or

%PLATFORM-3-ELEMENT_CRITICAL:Switch 1 R0/0: smand:  1/RP/0: Used Memory value 96% exceeds critical level 95%

Workaround/Solution

Workaround:

In order to purge the allocated memory reload of the affected switch, enter the reload slot# command as below:

3850#reload slot#

<1-9> Slot number of RP or line card

Solution:

In order to fix the issue, upgrade the switch to Polaris Software Version 16.3.5b or later.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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