Comment 46 for bug 66637

> It was confirmed that the reporter had run mkswap

I dind't even KNOW that 'mkswap' command until reading about it here as being part of the solution!

I definitely did not run mkswap, ever. In fact, it happened on my FRESH install of Edgy. First time it happened it could have been because of an upgrade. I experienced massive instability, didn;t know about this bug at the time so then did a fresh install of Edgy. (re-using an existing swap partition). Not sure if the problem persisted or appeared again later.

Whatever the cause, it's bad. Perhaps do an active check during startup that swap space is indeed available and make noise if it doesn't.