Comment 5 for bug 13808

As Thomas noted, your swap space isn't set up correctly. You need to run mkswap
on it.

Also, for suspend-to-disk support, you can now put the partition information at
the bottom of /etc/mkinitrd/mkinitrd.conf. At your next kernel re-install it'll
pick that up, and you don't need the stuff in grub's menu.lst

What probably happened here is that you failed to restart the machine correctly
for some reason after suspending. When that happens, the swap signature is left
in a strange state, and needs to be reset. Hmm. I suspect that's the core of
this bug, and have retitled it appropriately. Increasing severity to match, I
think it's major.