Hi,

its a bug it the code. The workaround is to comment the function in the
libvirt code which checks the flags of cpu while migration. Do make sure
manually that the cpu flags of both the compute nodes are same.

Regards,
Prateek Khushalani
On Aug 1, 2014 6:51 PM, "James Page" <email address hidden> wrote:

> *** This bug is a duplicate of bug 1267191 ***
>     https://bugs.launchpad.net/bugs/1267191
>
> I think this is related to bug 1267191 which is currently in verfication
> in trusty-proposed.
>
> ** Changed in: nova (Ubuntu)
>    Importance: Undecided => Medium
>
> ** Changed in: nova (Ubuntu)
>        Status: Confirmed => Triaged
>
> ** This bug has been marked a duplicate of bug 1267191
>     openstack-nova-compute service fails with - libvirtError: internal
> error: CPU feature `avx' specified more than once
>
> --
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> Matching subscriptions: Prateek Khushalani
> https://bugs.launchpad.net/bugs/1322681
>
> Title:
>   live-migration --block-migrate <UUID> fails: XML error: CPU feature
>   `pdpe1gb' specified more than once
>
> Status in OpenStack Compute (Nova):
>   New
> Status in “nova” package in Ubuntu:
>   Triaged
> Status in “nova” package in Fedora:
>   New
>
> Bug description:
>   2014-05-23 15:32:58.767 57916 INFO nova.compute.resource_tracker [-]
> Compute_service record updated for chakora:chakora.1ss.qa.lexington
>   2014-05-23 15:33:42.551 57916 INFO nova.virt.libvirt.driver
> [req-9d8c6bac-74ea-4876-9fb2-729f2f525fb2 ff364dfc08b84aab871a802888cfbd76
> ce780a90138b466f8a0343d487e3198c] Instance launched has CPU info:
>   {"vendor": "Intel", "model": "SandyBridge", "arch": "x86_64",
> "features": ["pdpe1gb", "osxsave", "dca", "pcid", "pdcm", "xtpr", "tm2",
> "est", "smx", "vmx", "ds_cpl", "monitor", "dtes64", "pbe", "tm", "ht",
> "ss", "acpi", "ds", "vme", "pdpe1gb", "osxsave", "dca", "pcid", "pdcm",
> "xtpr", "tm2", "est", "smx", "vmx", "ds_cpl", "monitor", "dtes64", "pbe",
> "tm", "ht", "ss", "acpi", "ds", "vme", "lahf_lm", "lm", "rdtscp", "nx",
> "syscall", "avx", "xsave", "aes", "tsc-deadline", "popcnt", "x2apic",
> "sse4.2", "sse4.1", "cx16", "ssse3", "pclmuldq", "pni", "sse2", "sse",
> "fxsr", "mmx", "clflush", "pse36", "pat", "cmov", "mca", "pge", "mtrr",
> "sep", "apic", "cx8", "mce", "pae", "msr", "tsc", "pse", "de", "fpu"],
> "topology": {"cores": 8, "threads": 2, "sockets": 1}}
>   2014-05-23 15:33:42.556 57916 ERROR nova.virt.libvirt.driver
> [req-9d8c6bac-74ea-4876-9fb2-729f2f525fb2 ff364dfc08b84aab871a802888cfbd76
> ce780a90138b466f8a0343d487e3198c] CPU doesn't have compatibility.
>
>   XML error: CPU feature `pdpe1gb' specified more than once
>
>   Refer to
> http://libvirt.org/html/libvirt-libvirt.html#virCPUCompareResult
>   2014-05-23 15:33:42.568 57916 ERROR oslo.messaging.rpc.dispatcher [-]
> Exception during message handling: XML error: CPU feature `pdpe1gb'
> specified more than once
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> Traceback (most recent call last):
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
> 133, in _dispatch_and_reply
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> incoming.message))
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
> 176, in _dispatch
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> return self._do_dispatch(endpoint, method, ctxt, args)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
> 122, in _do_dispatch
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> result = getattr(endpoint, method)(ctxt, **new_args)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 88, in wrapped
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> payload)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", line
> 68, in __exit__
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> six.reraise(self.type_, self.value, self.tb)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 71, in wrapped
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> return f(self, context, *args, **kw)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 309, in
> decorated_function
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher     e,
> sys.exc_info())
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", line
> 68, in __exit__
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> six.reraise(self.type_, self.value, self.tb)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 296, in
> decorated_function
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> return function(self, context, *args, **kwargs)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 4418, in
> check_can_live_migrate_destination
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> block_migration, disk_over_commit)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4189,
> in check_can_live_migrate_destination
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> self._compare_cpu(source_cpu_info)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4331,
> in _compare_cpu
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> LOG.error(m, {'ret': ret, 'u': u})
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", line
> 68, in __exit__
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> six.reraise(self.type_, self.value, self.tb)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4327,
> in _compare_cpu
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> ret = self._conn.compareCPU(cpu.to_xml(), 0)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 179, in doit
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> result = proxy_call(self._autowrap, f, *args, **kwargs)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 139, in
> proxy_call
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher     rv
> = execute(f,*args,**kwargs)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 77, in tworker
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher     rv
> = meth(*args,**kwargs)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher   File
> "/usr/lib/python2.7/dist-packages/libvirt.py", line 3191, in compareCPU
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher     if
> ret == -1: raise libvirtError ('virConnectCompareCPU() failed', conn=self)
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
> libvirtError: XML error: CPU feature `pdpe1gb' specified more than once
>   2014-05-23 15:33:42.568 57916 TRACE oslo.messaging.rpc.dispatcher
>   2014-05-23 15:33:42.569 57916 ERROR oslo.messaging._drivers.common [-]
> Returning exception XML error: CPU feature `pdpe1gb' specified more than
> once to caller
>   2014-05-23 15:33:42.570 57916 ERROR oslo.messaging._drivers.common [-]
> ['Traceback (most recent call last):\n', '  File
> "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
> 133, in _dispatch_and_reply\n    incoming.message))\n', '  File
> "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
> 176, in _dispatch\n    return self._do_dispatch(endpoint, method, ctxt,
> args)\n', '  File
> "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
> 122, in _do_dispatch\n    result = getattr(endpoint, method)(ctxt,
> **new_args)\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 88, in wrapped\n
>    payload)\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", line
> 68, in __exit__\n    six.reraise(self.type_, self.value, self.tb)\n', '
>  File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 71, in
> wrapped\n    return f(self, context, *args, **kw)\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 309, in
> decorated_function\n    e, sys.exc_info())\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", line
> 68, in __exit__\n    six.reraise(self.type_, self.value, self.tb)\n', '
>  File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 296,
> in decorated_function\n    return function(self, context, *args,
> **kwargs)\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 4418, in
> check_can_live_migrate_destination\n    block_migration,
> disk_over_commit)\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4189,
> in check_can_live_migrate_destination\n
>  self._compare_cpu(source_cpu_info)\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 4331,
> in _compare_cpu\n    LOG.error(m, {\'ret\': ret, \'u\': u})\n', '  File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", line
> 68, in __exit__\n    six.reraise(self.type_, self.value, self.tb)\n', '
>  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line
> 4327, in _compare_cpu\n    ret = self._conn.compareCPU(cpu.to_xml(), 0)\n',
> '  File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 179, in
> doit\n    result = proxy_call(self._autowrap, f, *args, **kwargs)\n', '
>  File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 139, in
> proxy_call\n    rv = execute(f,*args,**kwargs)\n', '  File
> "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 77, in tworker\n
>    rv = meth(*args,**kwargs)\n', '  File
> "/usr/lib/python2.7/dist-packages/libvirt.py", line 3191, in compareCPU\n
>  if ret == -1: raise libvirtError (\'virConnectCompareCPU() failed\',
> conn=self)\n', "libvirtError: XML error: CPU feature `pdpe1gb' specified
> more than once\n"]
>   2014-05-23 15:33:58.940 57916 AUDIT nova.compute.resource_tracker [-]
> Auditing locally available compute resources
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 14.04
>   Package: nova-compute 1:2014.1-0ubuntu1
>   ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
>   Uname: Linux 3.13.0-24-generic x86_64
>   ApportVersion: 2.14.1-0ubuntu3.2
>   Architecture: amd64
>   Date: Fri May 23 15:43:40 2014
>   NovaConf: Error: [Errno 13] Permission denied: '/etc/nova/nova.conf'
>   PackageArchitecture: all
>   ProcEnviron:
>    TERM=screen-bce
>    PATH=(custom, no user)
>    XDG_RUNTIME_DIR=<set>
>    LANG=en_US.UTF-8
>    SHELL=/bin/bash
>   SourcePackage: nova
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   modified.conffile..etc.nova.rootwrap.d.compute.filters: [deleted]
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/nova/+bug/1322681/+subscriptions
>