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
block nbd0: NBD_DISCONNECT
block nbd0: Receive control failed (result -32)
block nbd0: shutting down socket
block nbd0: queue cleared

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?