Bug ID 994269: Message 'double flow removal' is logged in LTM log file

Last Modified: Mar 15, 2024

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

Known Affected Versions:
14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 16.0.0,, 16.0.1,,

Fixed In:
16.1.0, 15.1.10

Opened: Feb 16, 2021

Severity: 3-Major


The LTM log contains messages similar to the following: Oops @ 0x290cfa0:1129: double flow removal.


The memory_usage_stat and tmm/umem_usage_stat might reflect incorrect values under increased traffic load when the underlying double flow removal messages persist continuously on the blades. Excessive message logging by TMM may impact traffic.


FastL4 virtual server with iRule containing the FLOW_INIT command.



Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips