Bug ID 677473: MCPD core is generated on multiple add/remove of Mgmt-Rules

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7

Fixed In:
14.0.0, 13.1.0.8, 12.1.3.6

Opened: Aug 08, 2017
Severity: 2-Critical

Symptoms

MCP crashes with core. MCP automatically restarts causing other dependent daemons, including tmm, to restart. Corresponding messages (restarting mcp, restarting tmm, and so on) are broadcast in all command line connections (terminals). Core files are written into /shared/core directory. The BIG-IP system might become unusable while daemons restart, so both control-plane (tmsh/GUI) and data traffic processing are stopped until all daemons restart.

Impact

The BIG-IP system might become unusable for few minutes while daemons restart, so both control-plane (tmsh/GUI) and data traffic processing are stopped. Traffic disrupted while tmm restarts.

Conditions

-- AFM is licensed and provisioned. -- There are firewall policies/rules defined in configuration. -- Remove firewall rules/policies, especially rules attached to management-IP (might have to repeat this).

Workaround

None.

Fix Information

MCP no longer crashes, and other dependent daemons no longer restart. The BIG-IP system remains operational in both control-plane (tmsh/GUI) and data traffic processing.

Behavior Change