Bug ID 511187: The BIG-IP ASM bd process may produce a core file when a large BIG-IP ASM configuration is modified on a loaded system

Last Modified: Sep 13, 2023

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

Known Affected Versions:
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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.6.1 HF2

Opened: Mar 08, 2015

Severity: 2-Critical

Related Article: K94414232


Under rare circumstances, the BIG-IP ASM bd process may produce a core file. As a result of this issue, you may encounter one or more of the following symptoms: Your BIG-IP ASM system temporarily fails to pass traffic. Your BIG-IP ASM bd process restarts and creates a core file in the /var/core/ directory.


Traffic processing is interrupted while the bd process restarts.


This issue occurs when the following condition is met: You perform an extensive reconfiguration to many BIG-IP ASM policies while your BIG-IP ASM system is under heavy load. Impact



Fix Information

Fixed a bd crash that happens upon configuration change with very large deployments.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips