There are multiple issues, when loading VMMaker into closure-aware image (10292). two #needsToRegenerateInterpreterFile methods storing into block args. Fix is easy and quick. But what to do with this?? Compiler reporting 'stack including temps is too deep'. GeniePlugin>>primSameClassAbsoluteStrokeDistanceMyPoints: myPointsOop otherPoints: otherPointsOop myVectors: myVectorsOop otherVectors: otherVectorsOop mySquaredLengths: mySquaredLengthsOop otherSquaredLengths: otherSquaredLengthsOop myAngles: myAnglesOop otherAngles: otherAnglesOop maxSizeAndReferenceFlag: maxSizeAndRefFlag rowBase: rowBaseOop rowInsertRemove: rowInsertRemoveOop rowInsertRemoveCount: rowInsertRemoveCountOop (yes, this is a method's message pattern) :) i stopped trying to load VMMaker at this method. It would be nice to have VMMaker loaded in image+closures running under VM+closures :) -- Best regards, Igor Stasenko AKA sig.