Hi, I compiled and installed the latest 64bit Squeak VM for Linux using the source tarball of Ians Piumarta's website. Compilation was succesfull, and Damien Cassous Squeak dev image runs fine. Pharo however crashes after the first try to claim more memory. The output on the commandline is: squeak: /test/squeak/Squeak-3.10-4/platforms/unix/vm/sqUnixMemory.c:172: uxGrowMemoryBy: Assertion `newDelta >= 0' failed. This problem can easily be reproduced by starting up the base image Pharo0.1Core-10164.image and opening the system browser, or doing something that requires extra memory like 10000 factorial in a workspace. Damiens Pharo dev image behaves exactly in the same way. Starting Pharo with command line argument -memory 4096m only delays the problem: after a few mouseclicks Pharo crashes. Any suggestions? Cheers, Paul Provoost The Netherlands _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/