Utrace
The main place for code and stuff is http://people.redhat.com/roland/utrace/
There is now a mailing list utrace-devel@redhat.com; it is gatewayed to a gmane newsgroup.
utrace/arch: Making utrace work on each machine architecture
utrace/ToDo: possible future work
utrace/Docs: Some mixed material from mailing lists, code...
Recent Linux mailing list postings by Roland McGrath
utrace/LPCSlides: Slides from Roland's talk at the 2008 Linux Plumbers Conference