Mac OS X Server 1.x: "reserveDebuggerLock: already locked" Error

This article describes an error with Mac OS X Server 1.x where reserveDebuggerLock: already locked appears in the system.log file numerous times.
Symptom
This message appears many times in /var/log/system.log:
Products affected

Solution

This is an Ethernet driver error in Mac OS X Server. Other than filling the system.log file with the error message, this error does not affect the performance of Mac OS X Server. You can safely ignore it.

Published Date: Feb 18, 2012