Leonardo, Many thanks for the hints. I will investigate, but I probably won't have time until next week.
Of course, this all depends on how well gdb (or your preferred debugger, should you chose to adapt the instructions) works correctly with threads on True64.
In my experience, the Tru64 Unix debugger 'ladebug' works OK with native threads. None of the others do, though. I'll report on whatever I find. Peter. -- ======================================================================== Peter Keller. | "Research without indebtedness is European Bioinformatics Institute,| suspect, and somebody must always, Hinxton Hall, | somehow, be thanked." Cambridge, CB10 1SD, UK | --- Umberto Eco ----------------------------------- Email: keller@ebi.ac.uk | Tel. (+44/0)1223 494637 | Macromolecular Structure Database Fax. (+44/0)1223 494468 | http://msd.ebi.ac.uk ========================================================================