Bug ID 812929: mcpd may core when resetting a DSC connection

Last Modified: Jul 12, 2023

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

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,, 15.0.0, 15.0.1,,,

Fixed In:

Opened: Aug 06, 2019

Severity: 3-Major


In rare circumstances mcpd may core when resetting its DSC connection.


mcpd cores and restarts. This results in a failover to the next active peer.


The exact conditions are not known for this to occur. The BIG-IP system must be in a Device Service Cluster, and must have configuration sync enabled. It might be related to when an Administrative BIG-IP user makes manual changes to the device trust group that would cause the trust to be broken (and optionally, re-established).



Fix Information

The system now prevents mcpd from coring when it resets it DSC connection.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips