Hi, Alex recently wrote a test in Moose that seems to crash the Cog VM at least on Mac. How to reproduce: - download the following image http://dl.dropbox.com/u/18323746/Tmp/moose-crashing-cog-jit.zip - execute the following code in the workspace (already provided in the image) cls := Class new superclass: MooseElement; yourself. cls compileSilently: 'mooseName ^ 1/0'. element := cls new. - I used all of the followings and they all crashed: https://pharo-ic.lille.inria.fr/hudson/view/Cog/job/Cog%20Mac%20Cocoa/4/art… https://pharo-ic.lille.inria.fr/hudson/view/Cog/job/StackVM%20Mac%20Cocoa/2… http://www.mirandabanda.org/files/Cog/VM/VM.r2370/Cog.app.tgz http://www.mirandabanda.org/files/Cog/VM/VM.r2361/Cog.app.tgz The strange thing is that the crash only happens when we subclass MooseElement, but not another class. Could someone take a look? Cheers, Doru -- www.tudorgirba.com "Every thing should have the right to be different."