Open Stack

On 02/13/2014 01:40 PM, Xu (Simon) Chen wrote:
> I recently ran into the problem of not being able to create VMs.
> Basically nova-compute is able to generate the XML file, but not able to
> call virDomainCreateWithFlags(), which raises libvirtError saying
> "libvirtError: An error occurred, but the cause is unknown" -- how
> fantastic..
> 
> I am running debian wheezy, libvirt 1.1.4, qemu-kvm 1.6.0. 
> 
> This started to happen after I perform a code upgrade of openstack. The
> old VMs are fine, and can be hard rebooted. But new VMs always get the
> libvirt error. I compared the XML of old and new VMs, and can't really
> see any difference.
> 
> I attached an example of the XML having problems below.
if you run virsh define to that xml, does it work?

> 
> -Simon
> 
> <domain type='kvm'>____
> 
>   <name>instance-00001ac7</name>____
> 
>   <uuid>878c4ee5-15fd-4572-964a-8887a7a1d16f</uuid>____
> 
>   <memory unit='KiB'>8388608</memory>____
> 
>   <currentMemory unit='KiB'>8388608</currentMemory>____
> 
>   <vcpu placement='static'>4</vcpu>____
> 
>   <os>____
> 
>     <type arch='x86_64' machine='pc-i440fx-1.6'>hvm</type>____
> 
>     <boot dev='hd'/>____
> 
>   </os>____
> 
>   <features>____
> 
>     <acpi/>____
> 
>     <apic/>____
> 
>   </features>____
> 
>   <cpu mode='host-model'>____
> 
>     <model fallback='allow'/>____
> 
>   </cpu>____
> 
>   <clock offset='utc'>____
> 
>     <timer name='pit' tickpolicy='delay'/>____
> 
>     <timer name='rtc' tickpolicy='catchup'/>____
> 
>   </clock>____
> 
>   <on_poweroff>destroy</on_poweroff>____
> 
>   <on_reboot>restart</on_reboot>____
> 
>   <on_crash>destroy</on_crash>____
> 
>   <devices>____
> 
>     <emulator>/usr/bin/kvm</emulator>____
> 
>     <disk type='network' device='disk'>____
> 
>       <driver name='qemu' type='raw' cache='none'/>____
> 
>       <auth username='volumes'>____
> 
>         <secret type='ceph'
> uuid='ac65b065-1655-46ed-b780-5e37582cb025'/>____
> 
>       </auth>____
> 
>       <source protocol='rbd'
> name='volumes/volume-d12c624a-c06a-4c83-a9ac-28665555bb41'>____
> 
>         <host name='10.20.130.1' port='6789'/>____
> 
>         <host name='10.20.130.8' port='6789'/>____
> 
>         <host name='10.20.131.7' port='6789'/>____
> 
>       </source>____
> 
>       <target dev='vda' bus='virtio'/>____
> 
>       <serial>d12c624a-c06a-4c83-a9ac-28665555bb41</serial>____
> 
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x05'
> 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'/>____
> 
>     <controller type='virtio-serial' index='0'>____
> 
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
> function='0x0'/>____
> 
>     </controller>____
> 
>     <interface type='bridge'>____
> 
>       <mac address='fa:16:3e:18:7b:92'/>____
> 
>       <source bridge='qbr250a2f47-f5'/>____
> 
>       <target dev='tap250a2f47-f5'/>____
> 
>       <model type='virtio'/>____
> 
>       <filterref filter='nova-instance-instance-00001ac7-fa163e187b92'/>____
> 
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
> function='0x0'/>____
> 
>     </interface>____
> 
>     <serial type='file'>____
> 
>       <source
> path='/opt/stack/data/nova/instances/878c4ee5-15fd-4572-964a-8887a7a1d16f/console.log'/>____
> 
>       <target port='0'/>____
> 
>     </serial>____
> 
>     <serial type='pty'>____
> 
>       <target port='1'/>____
> 
>     </serial>____
> 
>     <console type='file'>____
> 
>       <source
> path='/opt/stack/data/nova/instances/878c4ee5-15fd-4572-964a-8887a7a1d16f/console.log'/>____
> 
>       <target type='serial' port='0'/>____
> 
>     </console>____
> 
>     <channel type='pty'>____
> 
>       <target type='virtio' name='com.redhat.spice.0'/>____
> 
>       <address type='virtio-serial' controller='0' bus='0' port='1'/>____
> 
>     </channel>____
> 
>     <input type='mouse' 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>____
> 
>     <graphics type='spice' autoport='yes' listen='0.0.0.0'
> keymap='en-us'>____
> 
>       <listen type='address' address='0.0.0.0'/>____
> 
>     </graphics>____
> 
>     <video>____
> 
>       <model type='qxl' ram='65536' vram='65536' 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='0x06'
> function='0x0'/>____
> 
>     </memballoon>____
> 
>   </devices>____
> 
> </domain>
> 
> 
> 
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