Comment 16 for bug 390591

are you sure you run mono 2.4 over there ?

i'm also not so sure the way you run gdb is the right one for debugging mono, its probably better to install the mono-debugger package and run f-spot with the --mdb arg instead, so you get detailed debug output from the interpreter

(looking at the /usr/bin/f-spot script it seems also to accept --gdb as argument btw)