Bug ID 525562: Debug TMM Crashes During Initialization

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.5.1, 11.5.1 HF1, 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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3 HF2

Opened: May 28, 2015

Severity: 2-Critical

Symptoms

Debug version of TMM (tmm.debug) generates core file and fails to start up.

Impact

Traffic disrupted while tmm restarts.

Conditions

This issue happens when running debug version of TMM on a multi-blade chassis/vCMP.

Workaround

Revert to use default version of TMM (tmm.default)

Fix Information

Removed unnecessary debug assert statements from TMM.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips