Bug ID 776073: OOM killer killing tmmin system low memory condition as process OOM score is high

Last Modified: Sep 11, 2019

Bug Tracker

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

Known Affected Versions:
14.1.0,,,,,,, 14.1.2, 15.0.0, 15.0.1

Opened: Apr 24, 2019
Severity: 4-Minor


When BIG-IP system running under low memory situation, Out-Of-Memory killer more likely selects tmm to kill and release the resources.


Traffic disrupted while tmm restarts.


BIG-IP version 13.0.x or later installed and system running with low memory. AFM provisioned makes the tmm process more likely to be selected by the oom killer


Adjust OOM score of "tmm" process through oom_score_adj proc setting. echo "-500" > /proc/<pid_of_tmm>/oom_score_adj

Fix Information


Behavior Change