Public bug reported:
We hit this error in Ocata while trying to launch an arm64 instance:
2017-03-16 08:01:42.329 144245 ERROR nova.virt.libvirt.guest
[req-2ad2d5d9-696d-4baa-a071-756e460ca3de 8f431f83f7e44ef1a084e7e27b40a685
a904dd389c5d4817a4d95b8f3268cf4d - - -] Error launching a defined domain with
XML: <domain type='kvm'>
<name>instance-00000001</name>
<uuid>220bec1b-8907-4da9-9862-9cc2354abf39</uuid>
<metadata>
<nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0";>
<nova:package version="15.0.0"/>
<nova:name>guestOS-test-arm64-kvm-xenial-ci_oil_slave14_0</nova:name>
<nova:creationTime>2017-03-16 08:01:38</nova:creationTime>
<nova:flavor name="m1.small">
<nova:memory>2048</nova:memory>
<nova:disk>20</nova:disk>
<nova:swap>0</nova:swap>
<nova:ephemeral>0</nova:ephemeral>
<nova:vcpus>1</nova:vcpus>
</nova:flavor>
<nova:owner>
<nova:user uuid="8f431f83f7e44ef1a084e7e27b40a685">admin</nova:user>
<nova:project
uuid="a904dd389c5d4817a4d95b8f3268cf4d">admin</nova:project>
</nova:owner>
<nova:root type="image" uuid="4e864421-efc0-4c39-8b49-d619356f72de"/>
</nova:instance>
</metadata>
<memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='static'>1</vcpu>
<cputune>
<shares>1024</shares>
</cputune>
<os>
<type arch='aarch64' machine='virt-2.8'>hvm</type>
<loader readonly='yes' type='pflash'>/usr/share/AAVMF/AAVMF_CODE.fd</loader>
<nvram>/var/lib/libvirt/qemu/nvram/instance-00000001_VARS.fd</nvram>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<gic version='3'/>
</features>
<cpu mode='host-model'>
<model fallback='allow'/>
<topology sockets='1' cores='1' threads='1'/>
</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='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source
file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/disk'/>
<target dev='vda' bus='virtio'/>
<address type='virtio-mmio'/>
</disk>
<controller type='pci' index='0' model='pcie-root'/>
<interface type='bridge'>
<mac address='fa:16:3e:74:b0:97'/>
<source bridge='qbr9a95f1e8-d5'/>
<target dev='tap9a95f1e8-d5'/>
<model type='virtio'/>
<address type='virtio-mmio'/>
</interface>
<serial type='pty'>
<log
file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/console.log'
append='off'/>
<target port='0'/>
</serial>
<console type='pty'>
<log
file='/var/lib/nova/instances/220bec1b-8907-4da9-9862-9cc2354abf39/console.log'
append='off'/>
<target type='serial' port='0'/>
</console>
<memballoon model='virtio'>
<stats period='10'/>
<address type='virtio-mmio'/>
</memballoon>
</devices>
</domain>
2017-03-16 08:01:42.333 144245 ERROR nova.virt.libvirt.driver
[req-2ad2d5d9-696d-4baa-a071-756e460ca3de 8f431f83f7e44ef1a084e7e27b40a685
a904dd389c5d4817a4d95b8f3268cf4d - - -] [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] Failed to start libvirt guest
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1930, in
_build_and_run_instance
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] block_device_info=block_device_info)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2688, in
spawn
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] destroy_disks_on_failure=True)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 5099, in
_create_domain_and_network
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] destroy_disks_on_failure)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] self.force_reraise()
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] six.reraise(self.type_, self.value,
self.tb)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 5071, in
_create_domain_and_network
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] post_xml_callback=post_xml_callback)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4989, in
_create_domain
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] guest.launch(pause=pause)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] self._encoded_xml, errors='ignore')
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] self.force_reraise()
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] six.reraise(self.type_, self.value,
self.tb)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/guest.py", line 140, in
launch
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] return
self._domain.createWithFlags(flags)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 186, in doit
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] result = proxy_call(self._autowrap,
f, *args, **kwargs)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 144, in proxy_call
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] rv = execute(f, *args, **kwargs)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 125, in execute
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] six.reraise(c, e, tb)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 83, in tworker
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] rv = meth(*args, **kwargs)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] File
"/usr/lib/python2.7/dist-packages/libvirt.py", line 1065, in createWithFlags
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] if ret == -1: raise libvirtError
('virDomainCreateWithFlags() failed', dom=self)
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39] libvirtError: unsupported configuration:
CPU mode 'host-model' for aarch64 kvm domain on aarch64 host is not supported
by hypervisor
2017-03-16 08:01:43.522 144245 ERROR nova.compute.manager [instance:
220bec1b-8907-4da9-9862-9cc2354abf39]
** Affects: nova
Importance: Undecided
Status: New
** Affects: libvirt (Ubuntu)
Importance: Undecided
Status: New
** Tags: oil
** Also affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1673467
Title:
[ocata] unsupported configuration: CPU mode 'host-model' for aarch64
kvm domain on aarch64 host is not supported by hypervisor
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