As you already pointed out, during compaction and new space evacuation the
GC moves objects around. We cannot assemble a stack trace in this scenario
because the heap is in an inconsistent state and the stack trace routine
cannot safely dereference objects anymore.

Continuing is not possible because, well, we ran out of memory.

The only thing I can think of is that we identify parts of the stack trace
that don't require walking/dereferencing heap objects and assemble those
parts.

-Michael

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