Bug ID 2053613: Core dump found during stability testing

Last Modified: Nov 25, 2025

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

Fixed In:
21.0.0

Opened: Sep 16, 2025

Severity: 2-Critical

Symptoms

Core dump found during the stability testing in the control plane

Impact

Mcpd crashes. Control plane and traffic disrupted while mcpd restarts.

Conditions

Configure the BIG-IP and send the continous traffic

Workaround

None

Fix Information

Fixed by not sending the invalid configuration to main thread, which worker thread can not handle.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips