http://code.google.com/p/pharo/issues/detail?id=2418 Fix is in inbox: Name: System-Tools-MarianoMartinezPeck.30 Author: MarianoMartinezPeck Time: 12 May 2010, 12:22:36 pm UUID: 4785af6c-1ebe-487d-af22-2640e763e9f5 Ancestors: System-Tools-StephaneDucasse.29 Fix to issue 2418 <http://code.google.com/p/pharo/issues/detail?id=2418>: Now MethodContext can be taken into account in SpaceTally as MethodContext allInstancesDo: is working again.