[libvirt] libvirtd hang while saving domain ??

[Daniel Schwager]

Hi,

if i save a kvm domain, libvirt will not answer to any command (e.g.
virsh list).
While  saving, the dd process works ... after finishing,
it possible to execute virsh commands. Why does libvirtd blocks ? 
Is there a way to process the requests in concurrency ?

25766 ?        S      0:00 sh -c dd
of='/tmp/storage11.POOL401-w2-VM323.suspendRAM' oflag=append
conv=notrunc 2>/dev/null
25767 ?        D      0:03 dd of /tmp/storage11.suspendRAM oflag append
conv notrunc

regards
Danny