Problem with firewire disks with recent -CURRENT.

[Richard Todd]

> 
> What happens if you re-add the xpt_periph variable to sbp_do_attach() ?
> 
> ref:
> http://svnweb.freebsd.org/base/head/sys/dev/firewire/sbp.c?r1=249468&r2=249467&pathrev=249468&diff_format=f
> 
> see line 1089
> 
> Sean

Tried that.  No change, still get the same panic: mutex sbp not owned
at /usr/src/sys/cam/cam_xpt.c:4549 .

			Richard