Bug ID 758099: TMM may crash in busy environment when handling HTTP responses

Last Modified: Apr 21, 2021

Bug Tracker

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

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,

Fixed In:
15.0.0, 14.1.4

Opened: Feb 08, 2019
Severity: 3-Major


When load balancing HTTP requests, the BIG-IP system matches client-side and server-side connections. When connections are shutting down, a race condition may occur on a busy system and peer connection reference can be lost.


TMM crashes causing failover. Traffic disrupted while tmm restarts.


-- The BIG-IP system has a standard virtual with HTTP profile and HTTP router. -- The BIG-IP system has high CPU utilization.



Fix Information

The race condition has been corrected, so TMM no longer crashes in a busy environment when handling HTTP responses.

Behavior Change