F. DTrace Error Messages

DTrace will print error or warning messages to STDERR as a result of specific events. This appendix describes the more common messages encountered and provides suggestions for avoiding them.

Many of these are from the “DTrace Tips, Tricks and Gotchas” presentation1 by Bryan Cantrill, Mike Shapiro, and Adam Leventhal.





The user does not have the necessary permissions to run DTrace.


On Mac OS X and FreeBSD, the only solution is to run as the root user or use sudo(8).

On Solaris systems, required privileges to run DTrace can be assigned using process privileges (also see Chapter 11, Security): ...

Get The Official Ubuntu Server Book, 3rd Edition now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.