Similar issue here:
http://logs.openstack.org/10/490110/2/check/gate-tempest-dsvm-multinode-live-migration-ubuntu-xenial/6c1da1c/logs/subnode-2/libvirt/qemu/instance-00000003.txt.gz
/build/qemu-orucB6/qemu-2.8+dfsg/nbd/server.c:nbd_co_receive_request():L1135: reading from socket failed
Similar issue here:
http:// logs.openstack. org/10/ 490110/ 2/check/ gate-tempest- dsvm-multinode- live-migration- ubuntu- xenial/ 6c1da1c/ logs/subnode- 2/libvirt/ qemu/instance- 00000003. txt.gz
/build/ qemu-orucB6/ qemu-2. 8+dfsg/ nbd/server. c:nbd_co_ receive_ request( ):L1135: reading from socket failed