Bug ID 724906: sasp_gwm monitor leaks memory over time

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1, 14.0.0,,

Fixed In:

Opened: Jun 20, 2018

Severity: 2-Critical


The Server/Application State Protocol (SASP) monitor, sasp_gwm memory usage slowly increases over time.


sasp_gwm grows over time and eventually the system may be pushed into swap. Once swap is exhausted, the Linux OOM killer might terminate critical system processes, disrupting operation.


The Server/Application State Protocol (SASP) monitor is configured. The leakage occurs during normal operation of the monitor and is not tied to any specific user or traffic action.


Periodic restarts of sasp_gwm processes avoids the growth affecting the system.

Fix Information

The sasp_gwm monitor no longer leaks memory when processing messages.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips