I've been reading tutorials about gdb, and find it as very handy tool while debugging...
It comes out that you can set breaking points, watching points, access and change variables inside memory. That makes debugging so much easier than ever before.
here are some really useful websites that would really help out, if you would like to learn more about gdb, including two tutorials and a simple user manual.
GDB - GNU debugger
gdb Tutorial
Peter's gdb Tutorial: Table Of Contents
