A SystemTap update

As the article states there is no hard dependency, they are just used for deeper user space probing if wanted. And some of the utrace foundations have been going in, with the groundwork now upstream.

The last part of the article gives some idea of ways people are working on getting this functionality faster upstream, so they are included with more distributions by default. By splitting it up, providing other users, etc. One recent example is the utrace->ftrace engine proof of concept: http://lkml.org/lkml/2009/1/27/294

If you have any hints and tips for getting these things, or similar user space hooks that Systemtap can use, upstream faster that would be appreciated.