I have a multi node Kilo installation running on Ubuntu 14.04. When I spawn a VM I can find the following error in /var/log/syslog. The error message occurrs every time when I spawn VM, only the index varies:
nbd0: p1

It prints block nbd0: Receive control failed (result -32) to my shell. I cannot find any error in my nova-compute.log and the VM gets spawned without any errors. What is going on here? Do I have a problem?