[KVM] Migration with relative image

Hi everybody,

I just have a bug, and I don’t know if it’s was resolve with new version of kvm (> 0.12.5).

When I run a vm and trough the monitor i enter

stop
migrate_set_speed 1g
migrate "exec:gzip -c > /home/ahmet/tmp/snap-debian.gz"

The command overlaps (I have wait 30minutes) on a rel image (using with kvm-img create -b …).
But with a “proper” image, the migration take 30s.
Savevm/loadvm (on rel img) work perfectly but savevm is very long and migrate seems to resolve this problem.

I just want know if it’s “normal” or a bug ?

I’m french, sorry for my poor english.

Thanks !!