Cb Protection: CPU 100% After 8.0 P4 Agent Upgrade

Products

• Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

• Small subset of devices maxed out at 100% CPU Usage
• Initialization Percentage shows 0%
• Disabling Agent causes CPU usage to drop

Environment

• Cb Protection Agent: 8.0.0.2322 (Patch 4)
• Microsoft Windows: All Supported Versions

Cause

The behavior is caused by delay in script processing. If a server or workstation runs a large number of scripts concurrently, it can be delayed causing a spike in CPU which doesn't reduce over time

Resolution

Upgrade to 8.0.0.2562 (Patch 6)

Additional Information

A temporary workaround is to disable script processing until the upgrade can take place