[Fedora-xen] Xen paravirtualized guest freezes upon boot

Running xen 3

host and guest OS is FC6.

the guest boots but freezes after starting sshd.  Also it fails getting 
IP information for eth0.

xend.log doesn't really show anything wrong

[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:486) 
hotplugStatusCallback 1.
[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:143) Waiting for 
devices irq.
[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:143) Waiting for 
devices vkbd.
[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:143) Waiting for 
devices vfb.
[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:143) Waiting for 
devices pci.
[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:143) Waiting for 
devices ioports.
[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:143) Waiting for 
devices tap.
[2007-09-06 11:10:54 xend 9068] DEBUG (DevController:143) Waiting for 
devices vtpm.
[2007-09-06 11:10:54 xend 9068] INFO (XendDomain:370) Domain fedora.fc6 
(37) unpaused.
[2007-09-06 11:14:23 xend.XendDomainInfo 9068] DEBUG 
(XendDomainInfo:940) XendDomainInfo.handleShutdownWatch
[2007-09-06 11:14:23 xend.XendDomainInfo 9068] DEBUG 
(XendDomainInfo:940) XendDomainInfo.handleShutdownWatch
[2007-09-06 11:14:34 xend.XendDomainInfo 9068] INFO (XendDomainInfo:899) 
Domain has shutdown: name=fedora.fc6 id=37 reason=poweroff.
[2007-09-06 11:14:34 xend.XendDomainInfo 9068] DEBUG 
(XendDomainInfo:1463) XendDomainInfo.destroy: domid=37
[2007-09-06 11:14:34 xend.XendDomainInfo 9068] DEBUG 
(XendDomainInfo:1471) XendDomainInfo.destroyDomain(37)

You can see where it locks up at 11:10:54 and doesn't respond until it 
shut it down.

when I mount the img I can see this error "Sep  6 11:12:19 fc6_pristine 
modprobe: FATAL: Could not load 
/lib/modules/2.6.20-1.3001.fc6xen/modules.dep: No such file or directory".

my xend guest cfg is :
kernel = "/boot/vmlinuz-2.6-xenU"
memory = 256
name = "fedora.fc6"
vif = [ '' ]
dhcp = "dhcp"
disk = ['file:/usr/virtualServers/fedora.fc6.img,sda1,w', 
'file:/usr/virtualServers/fedora.swap,sda2,w']
root = "/dev/sda1 ro"
ramdisk = "/boot/initrd-2.6.20-1.3001.fc6.xen.img"
extra = "3"

Thanks in advanced for any help!