[libvirt] virsh stucked in virDomainCreate

Hi, I'm having an issue when trying to start a (previously created) vbox item : virsh gets stucked in virDomainCreate and I see no error message (LIBVIRT_DEBUG=1). Is there any mean to get more information on what is happening ? Moreover, now that virsh has stalled, running "connect vbox:///session" on another virsh instance gets an error from "secret driver". Is this normal, as if I'm only supposed to have 1 connection at a time ? Thanks Regards Anthony