padlock on amd64 does not work

Hi All,

after migrating from i386 to amd64 on a VIA Nano, padlock is not working
anymore. I use it to encrypt disks via GELI, this works fine when done
in software:

# /etc/rc.d/geli start
Configuring Disk Encryption for ad4s1f.
Enter passphrase:
GEOM_ELI: Device ad4s1f.eli created.
GEOM_ELI: Encryption: AES-CBC 256
GEOM_ELI:     Crypto: software

Now the same with the padlock module loaded:

# kldload padlock
padlock0: <AES-CBC,SHA1,SHA256> on motherboard
# 
# /etc/rc.d/geli start
Configuring Disk Encryption for ad4s1f.
Enter passphrase:
GEOM_ELI: Device ad4s1f.eli created.
GEOM_ELI: Encryption: AES-CBC 256
GEOM_ELI:     Crypto: hardware
fpudna in kernel mode!
fpudna in kernel mode!
fpudna in kernel mode!

This message repeats forever. Any ideas on this one?

Kind Regards
-- 
Michael Moll