9.0-CURRENT-201105-amd64 install kernel panic

Booting from FreeBSD-9.0-CURRENT-201105-amd64-memstick
the kernel panics:

panic: m_getzone: m_getjcl: invalid cluster type

http://www.flickr.com/photos/opensolaris/5818432532/in/photostream

The hardware is:

http://www.supermicro.com/products/motherboard/QPI/5500/X8DTL-3F.cfm

The cpu's are Intel 5520 and the nics are 82574L

FWIW this appears to be similar to a recently reported panic with 8-STABLE:

http://lists.freebsd.org/pipermail/freebsd-stable/2011-May/062596.html

Any help is very greatly apprecated.

thanks
-kim