After upgrade to F14, LUKS partition apparently unreadable

[Adam Huffman]

I've entered bug https://bugzilla.redhat.com/show_bug.cgi?id=620202 as
I can no longer boot Fedora on my laptop, after finding a LUKS error
with the F14 kernel.

Not a big problem for me as there's nothing significant stored on the
laptop but this would be pretty serious for a normal upgrade.

Adam