Bug ID 642039: TMM core when persist is enabled for wideip with certain iRule commands triggered.

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.2 HF1, 11.6.3.2, 11.5.7

Opened: Jan 27, 2017

Severity: 2-Critical

Related Article: K20140595

Symptoms

tmm cores with SIGSEGV.

Impact

Traffic disrupted while tmm restarts.

Conditions

This occurs when persist is enabled for wideip, and an iRule with the following commands triggered: forward reject drop discard noerror host

Workaround

Disable persist on wideip. Note: Although this is not an ideal workaround, it provides a way that to use those iRule commands without causing a tmm core.

Fix Information

TMM no longer coreswhen persist is enabled for wideip with certain iRule commands triggered.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips