The specified requests were completed successfully. For D program requests, the 0 exit status indicates that programs were successfully compiled, probes were successfully enabled, or anonymous state was successfully retrieved. dtrace returns 0 even if the specified tracing requests encounted errors or drops.

A fatal error occurred. For D program requests, the 1 exit status indicates that program compilation failed or that the specified request could not be satisfied.

Invalid command-line options or arguments were specified.