The link you give is for the ecryptfs-utils type of encryption. Mountall shouldn't be trying to mount it.
Could you put here the contents of:
/etc/crypttab (if present)
Also could you run
$ aptitude search cryptsetup
and give the output (the letter at the start will show whether you have cryptsetup installed).
finally, could you run, at the command line:
$ sudo mountall --debug > mountall.log 2>&1
If it doesn't stop, hit Ctrl-C after a second or two, and then attach that to this bug aswell.