Bug ID 484278: BIG-IP crash when processing packet and running iRule at the same time

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10, 11.5.2, 11.5.2 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.3

Opened: Oct 14, 2014
Severity: 2-Critical
Related Article:


The BIG-IP system sometimes crashes if it is processing packets and iRules at the same time.


The impact of this issue is that the BIG-IP system goes to crash intermittently.


Conditions leading to this issue include having iRule scripts and processing iRule tasks, and processing incoming traffic along with the iRule tasks.


This issue has no workaround at this time.

Fix Information

Fixed the iRule processing problem that is causing the BIG-IP to crash while processing incoming packets.

Behavior Change