Several cases of debugger hanging.

[commander-trashdin]

I found several cases, when debugger is showing up after some error, but then stops responding and makes you reload slime. It happens quite often, when using, for example, package cl-cffi-gtk, launching window makes it really uncomfortable. In emacs everything seems fine in a sense that it does manage to work the error message out.

I would go into details and examples if someone it interested in fixing that.

[mikulatomas]

Same problem, i have it even only when try to eval symbol without value and than want to provide the value.

[connormcmk]

Same issue. Makes it almost unusable for me, not sure if it's something I'm doing wrong, but it does seem that this shouldn't be happening

[connormcmk]

When I evaluate an undefined function connection is lost. @Wilima is this supposed to happen?

e.g. try typing (test) in the REPL