Bug ID 635191: Under rare circumstances TMM may crash

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1

Fixed In:
14.1.0, 14.0.0,,

Opened: Dec 20, 2016

Severity: 2-Critical


tmm crash and BIG-IP failover.


tmm restart and failover. Traffic disrupted while tmm restarts.


There are no known, reproducible conditions under which this occurs. However, the tmm restart happens once, and then does not recur. The only way to determine that the issue exists is through a review of the core stack, which must be completed by F5 Support.



Fix Information

The tmm restart and failover no longer occur.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips