Not sure what you mean, it depends on the implementation. The cheapest cop out answer would be: use racket and step through until you reach the point where it f

Not sure what you mean, it depends on the implementation. The cheapest cop out answer would be: use racket and step through until you reach the point where it fails. The IDE even gives you a nice handy list of the current continuation. I can trace it well less well in guile which is the usual scheme I use for daily projects but it's not something I've had huge trouble with on medium sized projects >10,000 lines.