Repeat post. Is there anyone out there who wants to take a stab at this project. Would be a cool one to try. BTW, Bray Cantrill is one of the fathers of Dtrace.
~Joe Bryan Cantrill posted [10] an idea for a straighforward, useful project to provide a log provider that adds a SDT probe to log_makemsg() so you could easily debug where error message are coming from. http://mail.opensolaris.org/pipermail/dtrace-discuss/2006-June/001815.html