Bug ID 421791: Out of Memory Error

Last Modified: Feb 13, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP WAM(all modules)

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1

Fixed In:
11.6.0, 11.5.3 HF2, 11.4.1 HF9

Opened: May 23, 2013
Severity: 3-Major
Related AskF5 Article:
K15559

Symptoms

TMM crashes due to a segmentation violation early in a WAM interface. Most likely, before the crash occurs the logs should show messages indicating that the sweeper was activated one or more times.

Impact

TMM crashes.

Conditions

Only happens when free memory is very low to non-existent.

Workaround

Reduce load on box if possible.

Fix Information

Guards were placed on the module interfaces to bypass the module when the necessary memory could not be allocated for a connection.

Behavior Change