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Cisco MGX 8230 Software

Field Notice: PXM45 Runs Out of Memory or File Descriptors


June 24, 2002


Products Affected

Product

Comments

PXM45

Loaded with 2.0 or 2.1 Releases

PXM45/B

Loaded with 2.0 or 2.1 Releases

Problem Description

Processor Switch Module 45s (PXM45s) may reset or become unreachable. Standby PXM45 may go into reset, the node may reset, or active PXM45s may go into a service module unreachable state.

Background

System memory and/or file handle allocation may get into a marginal or maxed out state due to an ungraceful exit from the dsplog command multiple times. This includes exiting display of the command with any other method other than using the Q keystroke to gracefully stop the dsplog command.

Problem Symptoms

Several symptoms are possible, including:

  • Inability or sporadic ability to connect using telnet.

  • Greyed-out node on the CWM topology map.

  • No output from or receipt of an error message from the dsplog command or file system listing command ls or other commands.

  • Standby PXM45 or AXSM service modules which remain in the Boot or Init state, or alternate between the two after a reload.

  • Inconsistent connection alarms on slave and master. This is manifested as one side reporting alarm, and the suspect side not.

Workaround/Solution

Workaround

On redundant systems with healthy standby PXM45 present, issue the switchcc command . This clears the memory leaks. On non-redundant systems, reset the single PXM45. This is disruptive, and should be performed during a scheduled maintenance window.

Solution

Upgrade software to the release shown in the attached bug in the DDTS section.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS

Description

CSCdx69070 (registered customers only)

Memory Allocation Errors - dsplog leaking memory and file descriptor

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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