GC: finalization order?!

[Martin Kinkelin]

Thanks guys, I'm honestly impressed by the responsiveness of this
newsgroup!

So I guess I'll try to mess around with GC.add/removeRoot().

For the curious:
Child is a memory buffer using reference counting, and serves multiple
Parent instances (multi-dimensional arrays). The goal is to free the
buffer as soon as all related Parents have been destructed (either
explicitly by clear() or by the GC).