Bug ID 887017: The dwbl daemon consumes a large amount of memory

Last Modified: Jan 22, 2021

Bug Tracker

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,

Fixed In:

Opened: Mar 03, 2020
Severity: 3-Major


The dynamic white/black daemon (dwbld) daemon shows very large memory consumption on adding addresses to shun-list.


The dwbl daemon uses a large amount of memory. If memory goes to exhaustion, enforcement of dwbl does not occur.


-- Adding a large number of IP addresses to the shun-list. -- Viewing dwbl memory usage using: config # top -p $(pidof dwbld)



Fix Information

Improvements to dwbld memory handling have been implemented.

Behavior Change