Bug ID 452516: Excessive memory consumption after extended use

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
10.2.4, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 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, 11.5.10

Fixed In:
11.6.0, 11.5.2, 11.4.1 HF9, 11.2.1 HF15

Opened: Mar 16, 2014
Severity: 3-Major


Certain conditions can lead to excessive memory consumption. Excessive buffering results in performance drop, connections being dropped, and Out-of-memory core errors.


This might result in performance drop, connections being halted, and out-of-memory cores. Performance and stability can be impacted as well as full traffic-outages.


This can occur after a long period of time, such as a month or more.


The command 'bigstart restart tmm' on the standby unit will clear up the condition.

Fix Information

Memory usage has been improved for certain categories of connections that are not yet fully established.

Behavior Change