<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div style="RIGHT: auto"><SPAN style="RIGHT: auto"><VAR id=yui-ie-cursor></VAR>I have installed Essex in vlan mode. I am getting the following error </SPAN></div>
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<div style="RIGHT: auto"><SPAN style="RIGHT: auto">libvirtError: Failed to add tap interface to bridge 'br100': No such process<BR></div></SPAN>
<div style="RIGHT: auto"><SPAN style="RIGHT: auto">I see vlan100 and br100 up and running.</SPAN></div>
<div style="RIGHT: auto"><SPAN style="RIGHT: auto">Any help is appreciated.</SPAN></div>
<div style="RIGHT: auto"><SPAN style="RIGHT: auto"></SPAN> </div>
<div style="RIGHT: auto"><SPAN style="RIGHT: auto"></SPAN> </div>
<div style="RIGHT: auto"><SPAN style="RIGHT: auto">2012-05-27 20:59:30 DEBUG nova.utils [req-b0db1f8b-fbf4-4d5a-b254-d354c4befacf e3875ae91f3f45bbb1312bc2c4f32302 54dcafb79fcf4438a849bde92a432363] Running cmd (subprocess): qemu-img create -f qcow2 -o cluster_size=2M,backing_file=/var/lib/nova/instances/_base/c2ea5228abd40afed21736a8300efcde93bb09fc /var/lib/nova/instances/instance-00000035/disk from (pid=4774) execute /usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/utils.py:219<BR>2012-05-27 20:59:30 ERROR nova.compute.manager [req-b0db1f8b-fbf4-4d5a-b254-d354c4befacf e3875ae91f3f45bbb1312bc2c4f32302 54dcafb79fcf4438a849bde92a432363] [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] Instance failed to spawn<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] Traceback (most recent call last):<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance:
0724908c-4754-4bef-969b-40a16ce5dda6] File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 592, in _spawn<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] self._legacy_nw_info(network_info), block_device_info)<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/exception.py", line 114, in wrapped<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] return f(*args, **kw)<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/virt/libvirt/connection.py", line 904, in spawn<BR>2012-05-27 20:59:30 TRACE
nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] self._create_new_domain(xml)<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/virt/libvirt/connection.py", line 1557, in _create_new_domain<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] domain.createWithFlags(launch_flags)<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] File "/usr/lib/python2.7/dist-packages/libvirt.py", line 372, in createWithFlags<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)<BR>2012-05-27 20:59:30 TRACE
nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] libvirtError: Failed to add tap interface to bridge 'br100': No such process<BR>2012-05-27 20:59:30 TRACE nova.compute.manager [instance: 0724908c-4754-4bef-969b-40a16ce5dda6]<BR>2012-05-27 20:59:30 DEBUG nova.compute.manager [req-b0db1f8b-fbf4-4d5a-b254-d354c4befacf e3875ae91f3f45bbb1312bc2c4f32302 54dcafb79fcf4438a849bde92a432363] [instance: 0724908c-4754-4bef-969b-40a16ce5dda6] Deallocating network for instance from (pid=4774) _deallocate_network /usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py:616<BR>2012-05-27 20:59:30 DEBUG nova.rpc.amqp [req-b0db1f8b-fbf4-4d5a-b254-d354c4befacf e3875ae91f3f45bbb1312bc2c4f32302 54dcafb79fcf4438a849bde92a432363] Making asynchronous cast on network... from (pid=4774) cast /usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/rpc/amqp.py:346<BR>2012-05-27 20:59:31 ERROR nova.rpc.amqp
[req-b0db1f8b-fbf4-4d5a-b254-d354c4befacf e3875ae91f3f45bbb1312bc2c4f32302 54dcafb79fcf4438a849bde92a432363] Exception during message handling<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp Traceback (most recent call last):<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/rpc/amqp.py", line 252, in _process_data<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp rval = node_func(context=ctxt, **node_args)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/exception.py", line 114, in wrapped<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp return f(*args, **kw)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 177, in decorated_function<BR>2012-05-27 20:59:31 TRACE
nova.rpc.amqp sys.exc_info())<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp self.gen.next()<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 171, in decorated_function<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp return function(self, context, instance_uuid, *args, **kwargs)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 651, in run_instance<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp do_run_instance()<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/utils.py", line
945, in inner<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp retval = f(*args, **kwargs)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 650, in do_run_instance<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp self._run_instance(context, instance_uuid, **kwargs)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 451, in _run_instance<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp self._set_instance_error_state(context, instance_uuid)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp self.gen.next()<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File
"/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 432, in _run_instance<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp self._deallocate_network(context, instance)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp self.gen.next()<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 429, in _run_instance<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp injected_files, admin_password)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/compute/manager.py", line 592, in _spawn<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp
self._legacy_nw_info(network_info), block_device_info)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/exception.py", line 114, in wrapped<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp return f(*args, **kw)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/virt/libvirt/connection.py", line 904, in spawn<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp self._create_new_domain(xml)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File "/usr/local/lib/python2.7/dist-packages/nova-2012.1-py2.7.egg/nova/virt/libvirt/connection.py", line 1557, in _create_new_domain<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp domain.createWithFlags(launch_flags)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp File
"/usr/lib/python2.7/dist-packages/libvirt.py", line 372, in createWithFlags<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)<BR>2012-05-27 20:59:31 TRACE nova.rpc.amqp libvirtError: Failed to add tap interface to bridge 'br100': No such process<BR></SPAN></div>
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<div>Thanks,<BR>-vj</div></div></body></html>