Version: openstack-nova-compute-2014.2.2-1.el7.noarch
Enabling serial console causes the live migration process to fail with the following error in nova-compute.log:
nova[12362]: 2015-05-14 21:57:21.108 ERROR nova.virt.libvirt.driver [-] [instance: a4d0bd8f-666e-4606-9e2a-4c583719719e] Live Migration failure: internal error: process exited while connecting to monitor: Warning: option deprecated, use lost_tick_policy property of kvm-pit instead.
qemu-kvm: -chardev socket,id=charserial0,host=1.2.3.4,port=10000,server,nowait: Failed to bind socket: Cannot assign requested address
qemu-kvm: -chardev socket,id=charserial0,host=1.2.3.4,port=10000,server,nowait: chardev: opening backend "socket" failed
The host IP is coming from the proxyclient_address setting which can't be 0.0.0.0, but even if it is changed to 0.0.0.0 the port number stays the same and will likely conflict on the destination. If there is no port conflict the live migration will succeed.
before we find a way to fix this bug, we should document it somewhere to notify operators.