Comment #1 on issue 120 by nicolas.... at gmail.com: Cog crash when compiled with gcc version > 4.2 http://code.google.com/p/cog/issues/detail?id=120 Additionnally, note that an interpreter VM compiled with gcc 4.6.3 runs all tests of a 4.4 squeak image without crashing (32 bits linux mageia 2)