Bug ID 526637: tmm crash with APM clientless mode

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.2, 11.5.3, 11.6.0, 12.0.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 12.0.0 HF1, 11.6.1, 11.5.4

Opened: Jun 05, 2015

Severity: 3-Major

Symptoms

A condition that occurs when using APM in clientless mode can cause a rare tmm crash

Impact

Traffic disrupted while tmm restarts.

Conditions

Only occurs on 11.5 and later, and while using clientless mode 3. This crash has been very difficult to reproduce.

Workaround

none

Fix Information

tmm will no longer crash in APM clientless mode; it now sends a reset.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips