Bug ID 703793: tmm restarts when using ACCESS::perflow get' in certain events

Last Modified: Nov 07, 2022

Bug Tracker

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

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

Fixed In:
14.0.0, 14.0.0,,

Opened: Jan 25, 2018
Severity: 3-Major


tmm will restart when using 'ACCESS::perflow get' if the per-request policy has not been started yet.


Traffic disrupted while tmm restarts.


Use 'ACCESS::perflow get' iRule in an event that runs before the per-request policy (e.g., CLIENT_ACCEPTED).



Fix Information

Initialization of certain variables was reworked so that the iRule command will not cause a core anymore if the per-flow value is unavailable due to the per-request policy not having been started yet.

Behavior Change