I work on a Maemo 5 application (orrery) using the scratchbox environment on a 32-bit x86 box running Ubuntu. Occasionally my code will core-dump, and naturally I'd like to be able to use gdb to examine the core-dump file. However, it never works. gdb itself core-dumps whenever I try to do this. I've used gdb a lot in other situations, so I'm pretty sure I'm invoking the program properly.

Has anyone else seen (and hopefully solved) this problem?
Any ideas?