Bug ID 522141: Tmm cores while changing properties of PEM policies and rules.

Last Modified: Aug 19, 2026

Affected Product(s):
BIG-IP All(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, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
12.0.0

Opened: May 08, 2015

Severity: 3-Major

Symptoms

If a policy with session reporting is configured on the BIG-IP system, and the policy is changed to remove this action, then a tmm core might be observed.

Impact

This core occurs rarely. Traffic disrupted while tmm restarts.

Conditions

-- Session reporting is configured. -- Traffic is being processed. -- The policy is modified to remove the session reporting action.

Workaround

None, except not removing session reporting while traffic is being processed.

Fix Information

Deleting a session reporting action will not cause a tmm core.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips