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[Bug 1300808] [NEW] Invalid version number '['3.13.0']' with Ubuntu trusty

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Public bug reported:

Running latest devstack on Trusty Ubuntu, the Neutron agent fails to
start with the following backtrace:

2014-04-01 13:49:54.227 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] Running command: ['uname', '-r'] from (pid=14900) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:48
2014-04-01 13:49:54.232 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None]
Command: ['uname', '-r']
Exit code: 0
Stdout: '3.13.0-20-generic\n'
Stderr: '' from (pid=14900) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
2014-04-01 13:49:54.233 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] Running command: ['sudo', '/usr/local/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version'] from (pid=14900) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:48
2014-04-01 13:49:54.348 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None]
Command: ['sudo', '/usr/local/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version']
Exit code: 0
Stdout: 'ovs-vsctl (Open vSwitch) 2.0.1\nCompiled Feb 23 2014 14:42:32\n'
Stderr: '' from (pid=14900) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
2014-04-01 13:49:54.349 DEBUG neutron.agent.linux.ovs_lib [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] Checking OVS version for VXLAN support installed klm version is None, installed Linux version is ['3.13.0'], installed user version is 2.0  from (pid=14900) check_ovs_vxlan_version /opt/stack/neutron/neutron/agent/linux/ovs_lib.py:541
2014-04-01 13:49:54.350 CRITICAL neutron [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] invalid version number '['3.13.0']'
2014-04-01 13:49:54.350 TRACE neutron Traceback (most recent call last):
2014-04-01 13:49:54.350 TRACE neutron   File "/usr/local/bin/neutron-openvswitch-agent", line 10, in <module>
2014-04-01 13:49:54.350 TRACE neutron     sys.exit(main())
2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 1360, in main
2014-04-01 13:49:54.350 TRACE neutron     agent = OVSNeutronAgent(**agent_config)
2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 214, in __init__
2014-04-01 13:49:54.350 TRACE neutron     self._check_ovs_version()
2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 232, in _check_ovs_version
2014-04-01 13:49:54.350 TRACE neutron     ovs_lib.check_ovs_vxlan_version(self.root_helper)
2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/agent/linux/ovs_lib.py", line 550, in check_ovs_vxlan_version
2014-04-01 13:49:54.350 TRACE neutron     'kernel', 'VXLAN')
2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/agent/linux/ovs_lib.py", line 507, in _compare_installed_and_required_version
2014-04-01 13:49:54.350 TRACE neutron     installed_kernel_version) >= dist_version.StrictVersion(
2014-04-01 13:49:54.350 TRACE neutron   File "/usr/lib/python2.7/distutils/version.py", line 40, in __init__
2014-04-01 13:49:54.350 TRACE neutron     self.parse(vstring)
2014-04-01 13:49:54.350 TRACE neutron   File "/usr/lib/python2.7/distutils/version.py", line 107, in parse
2014-04-01 13:49:54.350 TRACE neutron     raise ValueError, "invalid version number '%s'" % vstring
2014-04-01 13:49:54.350 TRACE neutron ValueError: invalid version number '['3.13.0']'
2014-04-01 13:49:54.350 TRACE neutron 
q-agt failed to start

This is due to bug #1291535 and this fix:
https://git.openstack.org/cgit/openstack/neutron/commit/?id=b2f65d9d447ddf2caf3b9c754bd00a5148bdf12c

** Affects: neutron
     Importance: Undecided
     Assignee: Simon Pasquier (simon-pasquier)
         Status: In Progress


** Tags: icehouse-rc-potential

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https://bugs.launchpad.net/bugs/1300808

Title:
  Invalid version number '['3.13.0']' with Ubuntu trusty

Status in OpenStack Neutron (virtual network service):
  In Progress

Bug description:
  Running latest devstack on Trusty Ubuntu, the Neutron agent fails to
  start with the following backtrace:

  2014-04-01 13:49:54.227 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] Running command: ['uname', '-r'] from (pid=14900) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:48
  2014-04-01 13:49:54.232 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None]
  Command: ['uname', '-r']
  Exit code: 0
  Stdout: '3.13.0-20-generic\n'
  Stderr: '' from (pid=14900) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
  2014-04-01 13:49:54.233 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] Running command: ['sudo', '/usr/local/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version'] from (pid=14900) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:48
  2014-04-01 13:49:54.348 DEBUG neutron.agent.linux.utils [req-9f04e437-c667-40c2-8be4-aef96f4810de None None]
  Command: ['sudo', '/usr/local/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--version']
  Exit code: 0
  Stdout: 'ovs-vsctl (Open vSwitch) 2.0.1\nCompiled Feb 23 2014 14:42:32\n'
  Stderr: '' from (pid=14900) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
  2014-04-01 13:49:54.349 DEBUG neutron.agent.linux.ovs_lib [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] Checking OVS version for VXLAN support installed klm version is None, installed Linux version is ['3.13.0'], installed user version is 2.0  from (pid=14900) check_ovs_vxlan_version /opt/stack/neutron/neutron/agent/linux/ovs_lib.py:541
  2014-04-01 13:49:54.350 CRITICAL neutron [req-9f04e437-c667-40c2-8be4-aef96f4810de None None] invalid version number '['3.13.0']'
  2014-04-01 13:49:54.350 TRACE neutron Traceback (most recent call last):
  2014-04-01 13:49:54.350 TRACE neutron   File "/usr/local/bin/neutron-openvswitch-agent", line 10, in <module>
  2014-04-01 13:49:54.350 TRACE neutron     sys.exit(main())
  2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 1360, in main
  2014-04-01 13:49:54.350 TRACE neutron     agent = OVSNeutronAgent(**agent_config)
  2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 214, in __init__
  2014-04-01 13:49:54.350 TRACE neutron     self._check_ovs_version()
  2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 232, in _check_ovs_version
  2014-04-01 13:49:54.350 TRACE neutron     ovs_lib.check_ovs_vxlan_version(self.root_helper)
  2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/agent/linux/ovs_lib.py", line 550, in check_ovs_vxlan_version
  2014-04-01 13:49:54.350 TRACE neutron     'kernel', 'VXLAN')
  2014-04-01 13:49:54.350 TRACE neutron   File "/opt/stack/neutron/neutron/agent/linux/ovs_lib.py", line 507, in _compare_installed_and_required_version
  2014-04-01 13:49:54.350 TRACE neutron     installed_kernel_version) >= dist_version.StrictVersion(
  2014-04-01 13:49:54.350 TRACE neutron   File "/usr/lib/python2.7/distutils/version.py", line 40, in __init__
  2014-04-01 13:49:54.350 TRACE neutron     self.parse(vstring)
  2014-04-01 13:49:54.350 TRACE neutron   File "/usr/lib/python2.7/distutils/version.py", line 107, in parse
  2014-04-01 13:49:54.350 TRACE neutron     raise ValueError, "invalid version number '%s'" % vstring
  2014-04-01 13:49:54.350 TRACE neutron ValueError: invalid version number '['3.13.0']'
  2014-04-01 13:49:54.350 TRACE neutron 
  q-agt failed to start

  This is due to bug #1291535 and this fix:
  https://git.openstack.org/cgit/openstack/neutron/commit/?id=b2f65d9d447ddf2caf3b9c754bd00a5148bdf12c

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