problem with xen 3.2 in hardy

[Tomoki Taniguchi]

i am upgrading my xen servers from gutsy to hardy.
i have done clean reinstalls.

i have found that hardy with xen3.2 has some real problems still.
for one i can't seem to get a domU to boot if the disk is a loopback
file.  i can at least get an lvm domU to start the boot process.

i get this error on both amd64 and i386 hardy servers.

Error: Device 51713 (vbd) could not be connected. losetup /dev/loop1
/xen/local/domains/test-hardy/swap.img failed

anyone know how to fix this?

TIA,
Tomoki