A RAM test doesn’t stop reporting numbers like this. The computer I develop on at work started freezing after numerous JVM shared object crashes. Testing the RAM in another machine and other RAM in my machine seemed to indicate that a) the RAM had not been properly installed in the first place, b) had magically come loose over the weekend, or c) is dodgy RAM (I’m voting for the latter). This is the first day that I have been unable to develop any code, it made for a very good opportunity to do other things.