And here's the free output with an uncorrupted swap:
wolverian at pupu:~$ free
total used free shared buffers cached
Mem: 765544 512864 252680 0 17136 253164
-/+ buffers/cache: 242564 522980
Swap: 1638620 0 1638620
--
Thinkpad R51 won't hibernate
https://launchpad.net/bugs/54382