2009/6/3 james morris <james at jwm-art.net>: > sorry, i meant to say i'd tried that, but without debug symbols it's > uninformative: Oh, ok. > (gdb) call backtrace_from_fp($rbp,100) > [Switching to Thread 0xb7e346b0 (LWP 2520)] This brought nothing up on the SBCL terminal? Cheers, -- Nikodemus