@ Serge
I write down the process I have tried to solve this issue...
First the nova-compute.log show an ERROR as follow...
2013-05-21 16:19:11.230 ERROR nova.compute.manager [req-0e30e53b-
8d93-4a0b-b378-672a02d6eb417c0d5d8e458f4580972e14af22e8a6ca
8d6292b82686470bb5a46d3c1a565c03] [instance:
71c40047-8422-4623-aaf0-f06353dfcb75] Error: ['Traceback (most recent
call last):\n', ' File "/usr/lib/python2.7/dist-
packages/nova/compute/manager.py", line 834, in _run_instance\n
set_access_ip=set_access_ip)\n', ' File "/usr/lib/python2.7/dist-
packages/nova/compute/manager.py", line 1093, in _spawn\n
LOG.exception(_(\'Instance failed to spawn\'), instance=instance)\n', '
File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__\n
self.gen.next()\n', ' File "/usr/lib/python2.7/dist-
packages/nova/compute/manager.py", line 1089, in _spawn\n
block_device_info)\n', ' File "/usr/lib/python2.7/dist-
packages/nova/virt/libvirt/driver.py", line 1520, in spawn\n
block_device_info)\n', ' File "/usr/lib/python2.7/dist-
packages/nova/virt/libvirt/driver.py", line 2435, in
_create_domain_and_network\n domain = self._create_domain(xml,
instance=instance)\n', ' File "/usr/lib/python2.7/dist-
packages/nova/virt/libvirt/driver.py", line 2395, in _create_domain\n
domain = self._conn.defineXML(xml)\n', ' File "/usr/lib/python2.7/dist-
packages/eventlet/tpool.py", line 187, in doit\n result =
proxy_call(self._autowrap, f, *args, **kwargs)\n', ' File
"/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 147, in
proxy_call\n rv = execute(f,*args,**kwargs)\n', ' File
"/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 76, in
tworker\n rv = meth(*args,**kwargs)\n', ' File "/usr/lib/python2.7
/dist-packages/libvirt.py", line 2760, in defineXML\n if ret is
None:raise libvirtError(\'virDomainDefineXML() failed\', conn=self)\n',
"libvirtError: internal error no supported architecture for os type
'hvm'\n"]
Then I check the "/usr/lib/python2.7/dist-packages/libvirt.py" at line
2760, it is a function in class virConnect
def defineXML(self, xml):
ret = libvirtmod.virDomainDefineXML(self._o, xml)
if ret is None:raise libvirtError('virDomainDefineXML() failed',
conn=self)
__tmp = virDomain(self,_obj=ret)
return __tmp
To output the xml I add some code as follow and restart nova-compute
service
def defineXML(self, xml):
# save xml files to a temporary location
import __builtin__ as bu
f = bu.open("/tmp/libvirt.xml", "w")
f.write(xml) # Write a string to a file
f.close()
ret = libvirtmod.virDomainDefineXML(self._o, xml)
if ret is None:raise libvirtError('virDomainDefineXML() failed',
conn=self)
__tmp = virDomain(self,_obj=ret)
return __tmp
When re-create a vm use OpenStack Dashboard, I got the /tmp/libvirt.xml
as follow
<domain type="kvm">
<uuid>563fab12-f8b3-4689-b9b6-b3ba89c98246</uuid>
<name>instance-00000007</name>
<memory>524288</memory>
<vcpu>1</vcpu>
<sysinfo type="smbios">
<system>
<entry name="manufacturer">OpenStack Foundation</entry>
<entry name="product">OpenStack Nova</entry>
<entry name="version">2013.1</entry>
<entry name="serial">c56740d8-bfbc-db37-fe43-75ba7c50cdb8</entry>
<entry name="uuid">563fab12-f8b3-4689-b9b6-b3ba89c98246</entry>
</system>
</sysinfo>
<os>
<type>hvm</type>
<boot dev="hd"/>
<smbios mode="sysinfo"/>
</os>
<features>
<acpi/>
<apic/>
</features>
<clock offset="utc">
<timer name="pit" tickpolicy="delay"/>
<timer name="rtc" tickpolicy="catchup"/>
</clock>
<cpu mode="host-model" match="exact"/>
<devices>
<disk type="file" device="disk">
<driver name="qemu" type="qcow2" cache="none"/>
<source
file="/var/lib/nova/instances/563fab12-f8b3-4689-b9b6-b3ba89c98246/disk"/>
<target bus="virtio" dev="vda"/>
</disk>
<interface type="bridge">
<mac address="fa:16:3e:dd:b1:94"/>
<model type="virtio"/>
<source bridge="br-int"/>
<target dev="tapcd5492b6-18"/>
<virtualport type="openvswitch">
<parameters interfaceid="cd5492b6-1835-464a-b705-d5fed0766237"/>
</virtualport>
</interface>
<serial type="file">
<source
path="/var/lib/nova/instances/563fab12-f8b3-4689-b9b6-b3ba89c98246/console.log"/>
</serial>
<serial type="pty"/>
<input type="tablet" bus="usb"/>
<graphics type="vnc" autoport="yes" keymap="en-us" listen="0.0.0.0"/>
</devices>
</domain>
One can find the first line (<domain type="kvm">) that it still specify to use
KVM rather than Qemu, though I already specify "libvirt_type=qemu" in
nova.conf. According to #3 @Jamie's post, I found two possible way to solve it.
1. change the first line to <domain type="qemu">
2. change the line 16 to <type arch='x86_64'>hvm</type>
For testing, I have added some code in /usr/lib/python2.7/dist-
packages/libvirt.py to change the xml (ex. xml =
xml.replace('type="kvm"', 'type="qemu"',1)). Both method works fine.
So I still do not sure is it the bug of libvirt of Nova?
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https://bugs.launchpad.net/bugs/1031063
Title:
internal error no supported architecture for os type 'hvm'
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