One of the first things we told when we setup our guests under VM is to give the guest only as much memory as it needs which is usually quite small. If that's so then not even a 31-bit address space will be needed.
So, why not run 31-bit Linux guests? Does it matter one way or the other? Are there performance differences? I know, probably really stupid questions. Just popped into a sleepy brain after a big meal... Leland
