On boot I sometimes get:

panic: (esp0): invalid state: 6

I have done a little bit of diagnosis.  What
seems to happen is that a DISCONNECT message
comes in, the controller is put into DISCONNECTED
state.  Then it seems to try to do something
else and panics.  It seems to have something
to do with the state of some disk because I
can fix the problem if I reboot with a kernel
with the old driver.

I'll try to do some more diagnosis, but I'm
having some trouble capturing ncr traces since
this is during boot and the last of the output
doesn't seem to be properly added to the message 
buffer.

Eduardo