I now have a Solaris account and I''ve been able to try out my DT_Logger code there. I ran into several issues, but the one I''m stuck on (though working around :-) is the need for a much simplified siginfo_t definition. I looked at /usr/include/sys/siginfo.h, but I can''t figure out what the maze of #ifdefs would actually resolve to, so I don''t know which data elements I can ask dtrace to print. Could someone point me to a more straightforward definition? -r -- http://www.cfcl.com/rdm Rich Morin http://www.cfcl.com/rdm/resume rdm at cfcl.com http://www.cfcl.com/rdm/weblog +1 650-873-7841 Technical editing and writing, programming, and web development