[fedora-virt] VM snapshot with qemu-img

[rt]

Hi all,
 I'm on fedora11 64bit, using those packages:

qemu-common-0.10.6-4.fc11.x86_64
qemu-img-0.10.6-4.fc11.x86_64
qemu-system-x86-0.10.6-4.fc11.x86_64
qemu-kvm-0.10.6-4.fc11.x86_64
virt-manager-0.7.0-5.fc11.x86_64
virt-viewer-0.0.3-6.fc11.x86_64
python-virtinst-0.400.3-8.fc11.noarch
libvirt-python-0.6.2-17.fc11.x86_64
libvirt-0.6.2-17.fc11.x86_64


I've created a vm with qcow2 disk format (using virt-manager).
I tried to take snapshot of vm using "qemu-img snapshot" command but reverting to a snapshot corrupt the vm disk...

Is snapshot feature working in this release?
Any suggestion?

Thank you in advance,
Roberto