Comment 8 for bug 953875

I know that it's old, but I had the same problem. Maybe it can help others.

My fstab was quite the same as @Alan Pope's, and my crypttab was...

cat /etc/crypttab
cryptswap1 /dev/sdb3 /dev/urandom swap,cipher=aes-cbc-essiv:sha256

I found that my swap device should be /dev/sda3 instead of /dev/sdb3. So, just changing /etc/crypttab contents to

cryptswap1 /dev/sda3 /dev/urandom swap,cipher=aes-cbc-essiv:sha256

solved my problem.