This one has been driving me nuts all day. In a function I have the following: std::list< boost::shared_ptr<MyObject> > * objectList; When debugging my code, the debugger (gdb) dies upon entering the function with this in it. It says "The Debugger has exited due to signal 11 (SIGSEGV).The Debugger has exited due to signal 11 (SIGSEGV)." My dev tools felt the need to say it twice for some reason. I pulled this out and put it in a new project all by itself with the same result. If I make it not be a pointer, like this: std::list< boost::shared_ptr<MyObject> > objectList; then there's no problem. Oddly, both versions of the code work fine when run normally (not being debugged.) I don't see what's wrong with the first version. Is it OK to put boost shared ptrs in a std::list? Is there something else I'm missing? Or is my dev environment just having problems? -jim