5.2. Run Time Errors and Warnings
Runtime errors and warnings occur when the SystemTap instrumentation has been installed and is collecting data on the system.
WARNING: Number of errors:
N, skipped probes:
Errors and/or skipped probes occurred during this run. Both
are the counts of the number of probes that were not executed due to conditions such as too much time required to execute event handlers over an interval of time.
aggregate element not found
A statistics extractor function other than
was invoked on an aggregate that has not had any values accumulated yet. This is similar to a division by zero.