from preamble:

"Change Set:		StackWatcher
Date:			29 August 2003
Author:			Avi Bryant

Every once in a while, I crash my image with an infinite recursion.  The
StackWatcher class starts a high priority process that checks the depth
of all process stacks every few seconds, and forces a process to throw a
DeepStackNotification if its stack is obscenely large.

You can control the process with 'StackWatcher start' and 'StackWatcher
stop'.

This is just a quick proof of concept, and has been barely tested, but
it might prove useful to someone.
"!
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