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Hi All,
new VMs at http://www.mirandabanda.org/files/Cog/VM/VM.r2515/. These fix a code generator bug and as a result produce slightly better code in rare circumstances. Anyway, Hans' case below will no longer crash the VM :) Enjoy.
On Thu, Nov 17, 2011 at 5:38 AM, Baveco, Hans <[hidden email]> wrote:
I managed to crash the (latest) cog VM consistently, producing the attached crash dump (containing two crashes).
Debugging the code carefully I found that somewhere in the process of setting an instance variable of an object at the top of a tree-like structure, by traversing the tree downwards and back (lazy initializing instance variables), a clearly wrong method was executed:
setCenter: aPoint
center := center
after correcting this the crashes didn't occur anymore.
Not sure how important this is, but surprising it was, though!
Hans
-- best, Eliot
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