Bug ID 685857: Memory consumption of tmm slowly increases.

Last Modified: Nov 07, 2022

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1

Fixed In:

Opened: Sep 27, 2017

Severity: 3-Major


Memory consumption of tmm slowly increases.


Device may fail over to another unit in the high-availability (HA) configuration.


This occurs only when a session is terminated in policy evaluation phase, e.g., a client lands on the logon page and lets it times out. You can determine whether this issue is occurring by checking for memory usage as 'session' is expanded to 4 GB.


To recover from this issue, restart tmm. Note: Traffic will be disrupted while tmm restarts.

Fix Information

Memory consumption of tmm no longer increases when a client allows the logon page to time out.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips