Open Stack

Wed Sep 11 13:10:55 UTC 2013

----- Original Message -----
> From: "yongli he" <yongli.he at intel.com>
> To: "OpenStack Development Mailing List" <openstack-dev at lists.openstack.org>
> Sent: Wednesday, September 11, 2013 4:41:13 AM
> Subject: Re: [openstack-dev] [nova] [pci device passthrough] fails with "NameError: global name '_' is not defined"
> 于 2013年09月11日 05:38, David Kang 写道:
> >
> > ----- Original Message -----
> >> From: "Russell Bryant" <rbryant at redhat.com>
> >> To: "David Kang" <dkang at isi.edu>
> >> Cc: "OpenStack Development Mailing List"
> >> <openstack-dev at lists.openstack.org>
> >> Sent: Tuesday, September 10, 2013 5:17:15 PM
> >> Subject: Re: [openstack-dev] [nova] [pci device passthrough] fails
> >> with "NameError: global name '_' is not defined"
> >> On 09/10/2013 05:03 PM, David Kang wrote:
> >>> ----- Original Message -----
> >>>> From: "Russell Bryant" <rbryant at redhat.com>
> >>>> To: "OpenStack Development Mailing List"
> >>>> <openstack-dev at lists.openstack.org>
> >>>> Cc: "David Kang" <dkang at isi.edu>
> >>>> Sent: Tuesday, September 10, 2013 4:42:41 PM
> >>>> Subject: Re: [openstack-dev] [nova] [pci device passthrough]
> >>>> fails
> >>>> with "NameError: global name '_' is not defined"
> >>>> On 09/10/2013 03:56 PM, David Kang wrote:
> >>>>>   Hi,
> >>>>>
> >>>>>    I'm trying to test pci device passthrough feature.
> >>>>> Havana3 is installed using Packstack on CentOS 6.4.
> >>>>> Nova-compute dies right after start with error "NameError:
> >>>>> global
> >>>>> name '_' is not defined".
> >>>>> I'm not sure if it is due to misconfiguration of nova.conf or
> >>>>> bug.
> >>>>> Any help will be appreciated.
> >>>>>
> >>>>> Here is the info:
> >>>>>
> >>>>> /etc/nova/nova.conf:
> >>>>> pci_alias={"name":"test", "product_id":"7190",
> >>>>> "vendor_id":"8086",
> >>>>> "device_type":"ACCEL"}
> >>>>>
> >>>>> pci_passthrough_whitelist=[{"vendor_id":"8086","product_id":"7190"}]
> >>>>>
> >>>>>   With that configuration, nova-compute fails with the following
> >>>>>   log:
> >>>>>
> >>>>>    File
> >>>>>    "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>>>>    line 461, in _process_data
> >>>>>      **args)
> >>>>>
> >>>>>    File
> >>>>>    "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/dispatcher.py",
> >>>>>    line 172, in dispatch
> >>>>>      result = getattr(proxyobj, method)(ctxt, **kwargs)
> >>>>>
> >>>>>    File
> >>>>>    "/usr/lib/python2.6/site-packages/nova/conductor/manager.py",
> >>>>>    line 567, in object_action
> >>>>>      result = getattr(objinst, objmethod)(context, *args,
> >>>>>      **kwargs)
> >>>>>
> >>>>>    File "/usr/lib/python2.6/site-packages/nova/objects/base.py",
> >>>>>    line
> >>>>>    141, in wrapper
> >>>>>      return fn(self, ctxt, *args, **kwargs)
> >>>>>
> >>>>>    File
> >>>>>    "/usr/lib/python2.6/site-packages/nova/objects/pci_device.py",
> >>>>>    line 242, in save
> >>>>>      self._from_db_object(context, self, db_pci)
> >>>>>
> >>>>> NameError: global name '_' is not defined
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup Traceback (most recent call
> >>>>> last):
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/threadgroup.py",
> >>>>> line 117, in wait
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup x.wait()
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/threadgroup.py",
> >>>>> line 49, in wait
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return self.thread.wait()
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line
> >>>>> 166, in wait
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return self._exit_event.wait()
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/eventlet/event.py", line 116,
> >>>>> in
> >>>>> wait
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return hubs.get_hub().switch()
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/eventlet/hubs/hub.py", line
> >>>>> 177,
> >>>>> in switch
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return self.greenlet.switch()
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line
> >>>>> 192, in main
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup result = function(*args,
> >>>>> **kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/service.py",
> >>>>> line 65, in run_service
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup service.start()
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/service.py", line 164, in
> >>>>> start
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup self.manager.pre_start_hook()
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line
> >>>>> 805, in pre_start_hook
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> self.update_available_resource(nova.context.get_admin_context())
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line
> >>>>> 4773, in update_available_resource
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> rt.update_available_resource(context)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/lockutils.py",
> >>>>> line 246, in inner
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return f(*args, **kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/compute/resource_tracker.py",
> >>>>> line 318, in update_available_resource
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> self._sync_compute_node(context,
> >>>>> resources)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/compute/resource_tracker.py",
> >>>>> line 347, in _sync_compute_node
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup self._update(context,
> >>>>> resources,
> >>>>> prune_stats=True)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/compute/resource_tracker.py",
> >>>>> line 420, in _update
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup self.pci_tracker.save(context)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/pci/pci_manager.py", line
> >>>>> 126, in save
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup dev.save(context)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/objects/base.py", line
> >>>>> 134,
> >>>>> in wrapper
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup ctxt, self, fn.__name__, args,
> >>>>> kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/conductor/rpcapi.py",
> >>>>> line
> >>>>> 497, in object_action
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup objmethod=objmethod,
> >>>>> args=args,
> >>>>> kwargs=kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/rpcclient.py", line 85,
> >>>>> in
> >>>>> call
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return
> >>>>> self._invoke(self.proxy.call, ctxt, method, **kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/rpcclient.py", line 63,
> >>>>> in
> >>>>> _invoke
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return cast_or_call(ctxt, msg,
> >>>>> **self.kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/proxy.py",
> >>>>> line 126, in call
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup result = rpc.call(context,
> >>>>> real_topic, msg, timeout)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/__init__.py",
> >>>>> line 139, in call
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return _get_impl().call(CONF,
> >>>>> context, topic, msg, timeout)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/impl_qpid.py",
> >>>>> line 794, in call
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> rpc_amqp.get_connection_pool(conf,
> >>>>> Connection))
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>>>> line 574, in call
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup rv = list(rv)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>>>> line 539, in __iter__
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup raise result
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup NameError: global name '_' is
> >>>>> not
> >>>>> defined
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup Traceback (most recent call
> >>>>> last):
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>>>> line 461, in _process_data
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup **args)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/dispatcher.py",
> >>>>> line 172, in dispatch
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup result = getattr(proxyobj,
> >>>>> method)(ctxt, **kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/conductor/manager.py",
> >>>>> line
> >>>>> 567, in object_action
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup result = getattr(objinst,
> >>>>> objmethod)(context, *args, **kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/objects/base.py", line
> >>>>> 141,
> >>>>> in wrapper
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup return fn(self, ctxt, *args,
> >>>>> **kwargs)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup File
> >>>>> "/usr/lib/python2.6/site-packages/nova/objects/pci_device.py",
> >>>>> line
> >>>>> 242, in save
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup self._from_db_object(context,
> >>>>> self, db_pci)
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup
> >>>>> 2013-09-10 12:52:23.774 14749 TRACE
> >>>>> nova.openstack.common.threadgroup NameError: global name '_' is
> >>>>> not
> >>>>> defined
> >>>> Can you file a bug for this?
> >>>>
> >>>> Fix here: https://review.openstack.org/45949
> >>>>
> >>>> --
> >>>> Russell Bryant
> >>>
> >>>
> >>>   Thanks, Russell.
> >>>
> >>>   The bug is reported.
> >>> https://bugs.launchpad.net/nova/+bug/1223559
> >>>
> >>>   But, another error happens after the patch is applied.
> >>>   "TypeError:
> >>>   expected string or buffer".
> >>>
> >>> ----- log message -----
> >>>
> >>>    File
> >>>    "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>>    line 461, in _process_data
> >>>      **args)
> >>>
> >>>    File
> >>>    "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/dispatcher.py",
> >>>    line 172, in dispatch
> >>>      result = getattr(proxyobj, method)(ctxt, **kwargs)
> >>>
> >>>    File
> >>>    "/usr/lib/python2.6/site-packages/nova/conductor/manager.py",
> >>>    line 567, in object_action
> >>>      result = getattr(objinst, objmethod)(context, *args,
> >>>      **kwargs)
> >>>
> >>>    File "/usr/lib/python2.6/site-packages/nova/objects/base.py",
> >>>    line
> >>>    141, in wrapper
> >>>      return fn(self, ctxt, *args, **kwargs)
> >>>
> >>>    File
> >>>    "/usr/lib/python2.6/site-packages/nova/objects/pci_device.py",
> >>>    line 243, in save
> >>>      self._from_db_object(context, self, db_pci)
> >>>
> >>>    File
> >>>    "/usr/lib/python2.6/site-packages/nova/objects/pci_device.py",
> >>>    line 150, in _from_db_object
> >>>      pci_device.extra_info = jsonutils.loads(extra_info)
> >>>
> >>>    File
> >>>    "/usr/lib/python2.6/site-packages/nova/openstack/common/jsonutils.py",
> >>>    line 158, in loads
> >>>      return json.loads(s)
> >>>
> >>>    File "/usr/lib64/python2.6/json/__init__.py", line 307, in
> >>>    loads
> >>>      return _default_decoder.decode(s)
> >>>
> >>>    File "/usr/lib64/python2.6/json/decoder.py", line 319, in
> >>>    decode
> >>>      obj, end = self.raw_decode(s, idx=_w(s, 0).end())
> >>>
> >>> TypeError: expected string or buffer
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup Traceback (most recent call
> >>> last):
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/threadgroup.py",
> >>> line 117, in wait
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup x.wait()
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/threadgroup.py",
> >>> line 49, in wait
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return self.thread.wait()
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line
> >>> 166, in wait
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return self._exit_event.wait()
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/eventlet/event.py", line 116, in
> >>> wait
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return hubs.get_hub().switch()
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/eventlet/hubs/hub.py", line 177,
> >>> in switch
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return self.greenlet.switch()
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/eventlet/greenthread.py", line
> >>> 192, in main
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup result = function(*args,
> >>> **kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/service.py",
> >>> line 65, in run_service
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup service.start()
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/service.py", line 164, in
> >>> start
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup self.manager.pre_start_hook()
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line
> >>> 805, in pre_start_hook
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> self.update_available_resource(nova.context.get_admin_context())
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line
> >>> 4773, in update_available_resource
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> rt.update_available_resource(context)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/lockutils.py",
> >>> line 246, in inner
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return f(*args, **kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/compute/resource_tracker.py",
> >>> line 318, in update_available_resource
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup self._sync_compute_node(context,
> >>> resources)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/compute/resource_tracker.py",
> >>> line 347, in _sync_compute_node
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup self._update(context, resources,
> >>> prune_stats=True)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/compute/resource_tracker.py",
> >>> line 420, in _update
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup self.pci_tracker.save(context)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/pci/pci_manager.py", line
> >>> 126, in save
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup dev.save(context)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/objects/base.py", line 134,
> >>> in wrapper
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup ctxt, self, fn.__name__, args,
> >>> kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/conductor/rpcapi.py", line
> >>> 497, in object_action
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup objmethod=objmethod, args=args,
> >>> kwargs=kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/rpcclient.py", line 85, in
> >>> call
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return
> >>> self._invoke(self.proxy.call, ctxt, method, **kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/rpcclient.py", line 63, in
> >>> _invoke
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return cast_or_call(ctxt, msg,
> >>> **self.kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/proxy.py",
> >>> line 126, in call
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup result = rpc.call(context,
> >>> real_topic, msg, timeout)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/__init__.py",
> >>> line 139, in call
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return _get_impl().call(CONF,
> >>> context, topic, msg, timeout)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/impl_qpid.py",
> >>> line 794, in call
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> rpc_amqp.get_connection_pool(conf,
> >>> Connection))
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>> line 574, in call
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup rv = list(rv)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>> line 539, in __iter__
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup raise result
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup TypeError: expected string or
> >>> buffer
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup Traceback (most recent call
> >>> last):
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py",
> >>> line 461, in _process_data
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup **args)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/dispatcher.py",
> >>> line 172, in dispatch
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup result = getattr(proxyobj,
> >>> method)(ctxt, **kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/conductor/manager.py", line
> >>> 567, in object_action
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup result = getattr(objinst,
> >>> objmethod)(context, *args, **kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/objects/base.py", line 141,
> >>> in wrapper
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return fn(self, ctxt, *args,
> >>> **kwargs)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/objects/pci_device.py",
> >>> line
> >>> 243, in save
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup self._from_db_object(context,
> >>> self, db_pci)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/objects/pci_device.py",
> >>> line
> >>> 150, in _from_db_object
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup pci_device.extra_info =
> >>> jsonutils.loads(extra_info)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib/python2.6/site-packages/nova/openstack/common/jsonutils.py",
> >>> line 158, in loads
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return json.loads(s)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib64/python2.6/json/__init__.py", line 307, in loads
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup return
> >>> _default_decoder.decode(s)
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup File
> >>> "/usr/lib64/python2.6/json/decoder.py", line 319, in decode
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup obj, end = self.raw_decode(s,
> >>> idx=_w(s, 0).end())
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup
> >>> 2013-09-10 13:56:35.366 16736 TRACE
> >>> nova.openstack.common.threadgroup TypeError: expected string or
> >>> buffer
> >> Try this:
> >>
> >> diff --git a/nova/objects/pci_device.py
> >> b/nova/objects/pci_device.py
> >> index a83b8f3..d0a628a 100644
> >> --- a/nova/objects/pci_device.py
> >> +++ b/nova/objects/pci_device.py
> >> @@ -145,7 +145,7 @@ class PciDevice(base.NovaPersistentObject,
> >> base.NovaObject):
> >> if key != 'extra_info':
> >> pci_device[key] = db_dev[key]
> >> else:
> >> - extra_info = db_dev.get("extra_info")
> >> + extra_info = db_dev.get("extra_info", '{}')
> >> pci_device.extra_info = jsonutils.loads(extra_info)
> >> pci_device._context = context
> >> pci_device.obj_reset_changes()
> >>
> >>
> >> --
> >> Russell Bryant
> >
> >   The same error happens.
> > The error message says "TypeError: expected string or buffer".
> hi, David
> could you paste the new trace to the bug ? (note it with the patch)
> that's close to the fix i think.
> 
> thanks
> Yongli he
> >

 Hi Yongli,

 I believe I patched the code, but there is no difference. The same error.
Since I installed it using packstack, the code is not as updated as the master trunk.
I believe it is Havana 3. 
Could it be the problem?

 Here is my code after applying the patch.

144     def _from_db_object(context, pci_device, db_dev):
145         for key in pci_device.fields:
146             if key != 'extra_info':
147                 pci_device[key] = db_dev.get(key)
148             else:
149                 extra_info = db_dev.get("extra_info", '{}')
150                 pci_device.extra_info = jsonutils.loads(extra_info)

 Thanks,
 David

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[openstack-dev] [nova] [pci device passthrough] fails with "NameError: global name '_' is not defined"

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