Benign Message: CPU is not properly initialized

Warning Message: CPU is not properly initialized is benign

Problem

During Linux operating system boot, Linux OS might log a BIOS warning message that the Time Stamp Counter is out of sync among the processors.

When the individual CPUs are brought into service (called Application Processors), the Time Stamp Counter (TSC) register is reset to be in sync among all processors. Linux OS assumes that, when read initially after coming out of reset, the TSC values among the processors should be within an assumed drift. However, this it not true. Linux OS assumes that BIOS probably modified the TSC. Linux OS logs this warning message:

CPU not properly initialized

Impacted OS: SLES9-SP3

Impacted Hardware: All server modules (X8400, X8420, X8440)

Workaround

The message is merely informative and is benign. Linux OS corrects the TSC to be synchronized among the processors. No action is needed.