How do you recover from a lisp stack overflow?



I've been playing with recursive functions lately, and if I enter too large
an input, what happens is that I get:

*** - Lisp stack overflow. RESET
[1]>

What should I do now?  Is there any way of getting back into maxima, or do I
just have to kill the process (I'm using linux) and restart maxima fom
scratch?

Thanks,
Alasdair