Hello,
       I have 2 hosts A and B,the settings of libvirtd are 
       A:   
Compiled against library: libvirt 0.10.2
Using library: libvirt 0.10.2
Using API: QEMU 0.10.2
Running hypervisor: QEMU 0.12.1
B:
Compiled against library: libvir 0.9.4
Using library: libvir 0.9.4
Using API: QEMU 0.9.4
Running hypervisor: QEMU 0.12.1
when I migrate a guest from A to B without storage,I used the command "virsh migrate --live  --copy-storage-all --verbose vm qemu+ssh://kvm/system".The first time I succeed and I wantto to emulate the local network is down when I migrate,so I close the terminal (Xshell)  when migrating, when I reconnect to the terminal ,use the migration command again,it failed.The libvirtd.log says:
error : qemuMonitorIORead:514 : Unable to read from monitor: Connection reset by peer
warning : qemuMonitorMigrateToFd:1941 : failed to close migration handle
It seems that the migration process has not finished normally and so migration cannot go on. I want to know how to resolve it. thanks.