Encrypted Swap -- Loop Devices

[Adam W <adam.ckdvwwzz@gmail.com>]

I am having difficulty getting encrypted swap to enable on boot. Can anyone 
offer any suggestions?

# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/hda2       none            swap    sw,loop=/dev/loop0,encryption=AES256   
0   0

After boot /dev/loop exists but /dev/loop0 to /dev/loop7 do not exist. 
# ls /dev/loo*
0
# swapon -a
swapon: unable to open loop device /dev/loop0

After I execute "losetup -a", /dev/loop0 to /dev/loop7 then exist 
and "swapon -a" mounts the swap.  

# losetup -a
# ls /dev/loo*
/dev/loop0  /dev/loop1  /dev/loop2  /dev/loop3  /dev/loop4  /dev/loop5  /dev/loop6  /dev/loop7

/dev/loop:
0
# swapon -a
Setting up swapspace version 1, size = 1077501 kB
no label, UUID=b9e78291-ebe5-41e9-8ed3-c65324260818

Sorry about not including boot error messages but I don't seem to be logging.
#more /var/log/boot
(Nothing has been logged yet.)
and the only reference to swap in /var/log/messages is its recreation after I 
had scrubbed the partition.

May 10 22:54:32 localhost kernel: Adding 1052244k swap on /dev/loop0.  
Priority:-1 extents:1 across:1052244k

Thankyou,
 - Adam Wakerhauser