[squeak-dev] VM cog crash
Eliot Miranda
eliot.miranda at gmail.com
Thu Nov 17 17:56:27 UTC 2011
Hi Hans,
can you send me the byetcode for teh broken method? i.e. send me the
result of
(MyClass >> #setCenter:) symbolic
for the method that crashes?
Thanks.
On Thu, Nov 17, 2011 at 5:38 AM, Baveco, Hans <Hans.Baveco at wur.nl> 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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