Xen dom0 regression in HEAD

["Sam Fourman Jr." <sfourman%gmail.com@localhost>]

Hello list,

It seems when I start a domu on NetBSD 5.x amd64, and have a cd image
mounted from a NFS share (nfs server is FreeBSD RELENG_8(4-13-2010))
the domu starts fine, no trouble, in fact I can even have a file
backed disk mounted from nfs as well.

however the same thing is not true for NetBSD Head Dom0, starting a
domu from anything that is mounted from a nfs share, causes the domu
not to start.
I would like to assist in any way I can getting this regression fixed.

here is my cfg file.

Sam Fourman Jr.
Fourman Networks

kernel = '/usr/pkg/lib/xen/boot/hvmloader'
builder = 'hvm'
memory = '512'
device_model='/usr/pkg/libexec/qemu-dm'

#disk = [ 'file:/home/xen/FreeBSD8R.img,ioemu:hda,w' ]
disk = [ 'file:/home/xen/mildewww.img,ioemu:hda,w',
          'file:/Network/iso/8.0-RELEASE-amd64-disc1.iso,ioemu:hdb:cdrom,r', ]


# Hostname
name = "FreeBSDwww"
vif = [ 'type=ioemu, model=pcnet, bridge=bridge0' ]
vfb = [ "type=vnc,vncdisplay=1,vnclisten=208.100.60.248" ]
boot= 'd'
vnc = 1
usbdevice = 'tablet' # Helps with mouse pointer positioning


Filesystem                       Size       Used      Avail %Cap Mounted on
/dev/wd0a                        497M        50M       422M  10% /
/dev/wd0f                        2.0G        20M       1.9G   1% /var
/dev/wd0e                        9.8G       2.0G       7.3G  21% /usr
/dev/wd0g                         63G        32G        28G  53% /home
mfs:186                          2.0G        20K       1.9G   0% /tmp
kernfs                           1.0K       1.0K         0B 100% /kern
ptyfs                            1.0K       1.0K         0B 100% /dev/pts
procfs                           4.0K       4.0K         0B 100% /proc
192.168.12.10:/Network/xen/      3.4T       127G       3.3T   3% /home/xen
192.168.12.10:/Network/xen/      3.4T       127G       3.3T   3%
/usr/pkg/etc/xen
192.168.12.10:/Network/iso/      3.5T       216G       3.3T   6% /Network/iso
192.168.12.10:Network/tv         3.6T       284G       3.3T   7% /TV