Well, it will happen if you add something to a list that's already 
there. Try this:

| list link |
list := LinkedList new.
link := Link new.
list add: link.
list add: link.
link explore.

So if you send #resume to a process with priority less than the active 
process, it might happen. Or if you try to suspend the active process, 
but it's already on a suspended list.

Cheers,
Bob

On 12/5/12 3:19 PM, Chris Muller wrote:
> I hope someone in the VM community will weigh in; is it valid to
> create a cycle in the linked-list of one Process?

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