My take on this is a lot easier. Linux does not work well if you don't give it a swap device, pretty much regardless of the size of your RAM. This explains why you experience stability problems even though you have plenty of memory.
Assuming you did have a swap device on dapper, this is most likely a duplicate of #66637. See that bug as to how to make it work again (mkswap your swap device, put the newly generated UUID into the swap slot in /etc/fstab). -- Edgy is slow and can't handle multiple apps well https://launchpad.net/bugs/73887 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
