I'm testing the Kilo packages from the cloud archive staging PPA on 14.04 and cannot launch a VM due to a Libvirt CPU affinity error. I'm using QEMU because my environment resides on cloud servers.

Package versions:

ii  nova-common                         1:2015.1~b3-0ubuntu1~cloud0           all          OpenStack Compute - common files
ii  nova-compute                        1:2015.1~b3-0ubuntu1~cloud0           all          OpenStack Compute - compute node base
ii  nova-compute-kvm                    1:2015.1~b3-0ubuntu1~cloud0           all          OpenStack Compute - compute node (KVM)
ii  nova-compute-libvirt                1:2015.1~b3-0ubuntu1~cloud0           all          OpenStack Compute - compute node libvirt support
ii  python-nova                         1:2015.1~b3-0ubuntu1~cloud0           all          OpenStack Compute Python libraries
ii  python-novaclient                   1:2.22.0-0ubuntu1~cloud0              all          client library for OpenStack Compute API
ii  libvirt-bin                         1.2.12-0ubuntu8~cloud0                amd64        programs for the libvirt library
ii  libvirt0                            1.2.12-0ubuntu8~cloud0                amd64        library for interfacing with different virtualization systems

Content of nova compute logs while attempting to launch an CirrOS/m1.tiny instance :

2015-03-31 23:00:07.106 31118 INFO nova.compute.manager [req-88539061-8d37-45a9-8edb-edd12f199d07 f214e083aa91455e8437996c2dfe815b 337052ec76e54c42ae891843a1451ca6 - - -] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Starting instance...
2015-03-31 23:00:07.180 31118 INFO nova.compute.claims [-] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Attempting claim: memory 512 MB, disk 1 GB
2015-03-31 23:00:07.181 31118 INFO nova.compute.claims [-] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Total memory: 1996 MB, used: 512.00 MB
2015-03-31 23:00:07.181 31118 INFO nova.compute.claims [-] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] memory limit: 2994.00 MB, free: 2482.00 MB
2015-03-31 23:00:07.182 31118 INFO nova.compute.claims [-] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Total disk: 39 GB, used: 0.00 GB
2015-03-31 23:00:07.182 31118 INFO nova.compute.claims [-] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] disk limit not specified, defaulting to unlimited
2015-03-31 23:00:07.206 31118 INFO nova.compute.claims [-] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Claim successful
2015-03-31 23:00:07.295 31118 INFO nova.scheduler.client.report [-] Compute_service record updated for ('msk-os4cpu1', 'msk-os4cpu1')
2015-03-31 23:00:07.407 31118 INFO nova.scheduler.client.report [-] Compute_service record updated for ('msk-os4cpu1', 'msk-os4cpu1')
2015-03-31 23:00:07.574 31118 INFO nova.virt.libvirt.driver [req-5352dc7c-4474-4637-b6f1-1d2697580392 - - - - -] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Creating image
2015-03-31 23:00:07.819 31118 INFO nova.scheduler.client.report [-] Compute_service record updated for ('msk-os4cpu1', 'msk-os4cpu1')
2015-03-31 23:00:07.907 31118 INFO nova.virt.disk.vfs.api [req-5352dc7c-4474-4637-b6f1-1d2697580392 - - - - -] Unable to import guestfs, falling back to VFSLocalFS
2015-03-31 23:00:10.902 31118 ERROR nova.virt.libvirt.driver [req-5352dc7c-4474-4637-b6f1-1d2697580392 - - - - -] Error launching a defined domain with XML: <domain type='qemu'>
  <name>instance-00000003</name>
  <uuid>0551a285-e0ba-4f67-b562-04a6eef5db63</uuid>
  <metadata>
    <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0">
      <nova:package version="2015.1-b3"/>
      <nova:name>demo-instance1</nova:name>
      <nova:creationTime>2015-03-31 23:00:08</nova:creationTime>
      <nova:flavor name="m1.tiny">
        <nova:memory>512</nova:memory>
        <nova:disk>1</nova:disk>
        <nova:swap>0</nova:swap>
        <nova:ephemeral>0</nova:ephemeral>
        <nova:vcpus>1</nova:vcpus>
      </nova:flavor>
      <nova:owner>
        <nova:user uuid="f214e083aa91455e8437996c2dfe815b">demo</nova:user>
        <nova:project uuid="337052ec76e54c42ae891843a1451ca6">demo</nova:project>
      </nova:owner>
      <nova:root type="image" uuid="38047887-61a7-41ea-9b49-27987d5e8bb9"/>
    </nova:instance>
  </metadata>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <vcpu placement='static' cpuset='0-1'>1</vcpu>
  <cputune>
    <shares>1024</shares>
  </cputune>
  <sysinfo type='smbios'>
    <system>
      <entry name='manufacturer'>OpenStack Foundation</entry>
      <entry name='product'>OpenStack Nova</entry>
      <entry name='version'>2015.1-b3</entry>
      <entry name='serial'>d6b7f537-d637-c7cd-c824-7b2b5be7ef4c</entry>
      <entry name='uuid'>0551a285-e0ba-4f67-b562-04a6eef5db63</entry>
    </system>
  </sysinfo>
  <os>
    <type arch='x86_64' machine='pc-i440fx-utopic'>hvm</type>
    <boot dev='hd'/>
    <smbios mode='sysinfo'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='host-model'>
    <model fallback='allow'/>
    <topology sockets='1' cores='1' threads='1'/>
  </cpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/var/lib/nova/instances/0551a285-e0ba-4f67-b562-04a6eef5db63/disk'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <interface type='bridge'>
      <mac address='fa:16:3e:14:a5:ae'/>
      <source bridge='qbr4d42f321-ee'/>
      <target dev='tap4d42f321-ee'/>
      <model type='virtio'/>
      <driver name='qemu'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='file'>
      <source path='/var/lib/nova/instances/0551a285-e0ba-4f67-b562-04a6eef5db63/console.log'/>
      <target port='0'/>
    </serial>
    <serial type='pty'>
      <target port='1'/>
    </serial>
    <console type='file'>
      <source path='/var/lib/nova/instances/0551a285-e0ba-4f67-b562-04a6eef5db63/console.log'/>
      <target type='serial' port='0'/>
    </console>
    <input type='tablet' bus='usb'/>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0' keymap='en-us'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='cirrus' vram='16384' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
      <stats period='10'/>
    </memballoon>
  </devices>
</domain>
 
2015-03-31 23:00:10.903 31118 ERROR nova.compute.manager [req-5352dc7c-4474-4637-b6f1-1d2697580392 - - - - -] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Instance failed to spawn
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Traceback (most recent call last):
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2398, in _build_resources
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     yield resources
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2270, in _build_and_run_instance
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     block_device_info=block_device_info)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2356, in spawn
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     block_device_info=block_device_info)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4375, in _create_domain_and_network
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     power_on=power_on)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4306, in _create_domain
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     LOG.error(err)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 85, in __exit__
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     six.reraise(self.type_, self.value, self.tb)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4296, in _create_domain
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     domain.createWithFlags(launch_flags)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 183, in doit
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     result = proxy_call(self._autowrap, f, *args, **kwargs)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 141, in proxy_call
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     rv = execute(f, *args, **kwargs)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 122, in execute
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     six.reraise(c, e, tb)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 80, in tworker
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     rv = meth(*args, **kwargs)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 896, in createWithFlags
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]     if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] libvirtError: Requested operation is not valid: cpu affinity is not supported
2015-03-31 23:00:10.903 31118 TRACE nova.compute.manager [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63]
2015-03-31 23:00:10.907 31118 INFO nova.compute.manager [req-88539061-8d37-45a9-8edb-edd12f199d07 f214e083aa91455e8437996c2dfe815b 337052ec76e54c42ae891843a1451ca6 - - -] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Terminating instance
2015-03-31 23:00:10.913 31118 INFO nova.virt.libvirt.driver [-] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Instance destroyed successfully.
2015-03-31 23:00:10.936 31118 INFO nova.virt.libvirt.driver [req-5352dc7c-4474-4637-b6f1-1d2697580392 - - - - -] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Deleting instance files /var/lib/nova/instances/0551a285-e0ba-4f67-b562-04a6eef5db63_del
2015-03-31 23:00:10.937 31118 INFO nova.virt.libvirt.driver [req-5352dc7c-4474-4637-b6f1-1d2697580392 - - - - -] [instance: 0551a285-e0ba-4f67-b562-04a6eef5db63] Deletion of /var/lib/nova/instances/0551a285-e0ba-4f67-b562-04a6eef5db63_del complete
2015-03-31 23:00:11.053 31118 INFO nova.scheduler.client.report [req-5352dc7c-4474-4637-b6f1-1d2697580392 - - - - -] Compute_service record updated for ('msk-os4cpu1', 'msk-os4cpu1')