Hi guys.

While working with an image that has seen quite significant abuse 
(Behavior changed shape and such), Squeak suddenly died and I got a 
stack top that looks like this:

-2122191856 >copyFrom:to:
-2122191948 >shallowCopy
-2122192040 >copy
-2122192132 >subclasses
2093027132 >allSubclasses
[snip]

Without too much digging (I probably won't be able to reproduce that), 
what do you infer from the stack top?

This is not the kind of debugging I'm used to in Smalltalk-land... don't 
know how to interpret those numbers, and I especially have no idea what 
the negative ones mean.

Thanks,
Daniel Vainsencher