Bug ID 430746: Some iRule commands may cause tmm to crash

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:
11.6.0, 11.4.1 HF9, 11.2.1 HF11

Opened: Sep 16, 2013
Severity: 3-Major
Related AskF5 Article:
K15558

Symptoms

Tmm crashes, usually with a "umem_backstore_free: no such allocation" panic message.

Impact

Traffic disrupted while tmm restarts.

Conditions

If an iRule command which is affected by this bug is executed in a server-side context at a time when there is no client-side connection, then tmm will probably crash.

Workaround

None.

Fix Information

iRule crash bug fixed.

Behavior Change