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>>>>> "Guenther" == Guenther Kramer <> writes:

 Guenther> Hi,
 Guenther> I am trying to generate a traceback when garbage collection
 Guenther> raises an exception. This of course can happen if the '__gc'
 Guenther> metamethod raises an exception. The problem I am encountering
 Guenther> is that the message handler is ignored:

Quoth the documentation:

"(The message handler is called only for regular runtime errors. It is
not called for memory-allocation errors nor for errors while running

What you'd need to do is to wrap each __gc method in its own xpcall.