Public bug reported:
If we are using openvswitch in a system with a newer kernel
(3.13/trusty) it should have the features required for neutron and not
require an openvswitch dkms package. Therefore we should be able to use
the native module.
In neutron/agent/linux/ovs_lib.py:
def get_installed_ovs_klm_version():
args = ["modinfo", "openvswitch"]
try:
cmd = utils.execute(args)
for line in cmd.split('\n'):
if 'version: ' in line and not 'srcversion' in line:
ver = re.findall("\d+\.\d+", line)
return ver[0]
except Exception:
LOG.exception(_("Unable to retrieve OVS kernel module version."))
So if we run modinfo on a system without a DKMS package we get:
$ modinfo openvswitch
filename:
/lib/modules/3.13.0-16-generic/kernel/net/openvswitch/openvswitch.ko
license: GPL
description: Open vSwitch switching datapath
srcversion: 1CEE031973F0E4024ACC848
depends: libcrc32c,vxlan,gre
intree: Y
vermagic: 3.13.0-16-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 1A:EE:D8:17:C4:D5:29:55:C4:FA:C3:3A:02:37:FE:0A:93:44:6D:69
sig_hashalgo: sha512
Because 'version' isn't provided we need an alternative way of checking
if the openvswitch module has the required features.
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1291535
Title:
'Unable to retrieve OVS kernel module version' when _not_ using DKMS
openvswitch module
Status in OpenStack Neutron (virtual network service):
New
Bug description:
If we are using openvswitch in a system with a newer kernel
(3.13/trusty) it should have the features required for neutron and not
require an openvswitch dkms package. Therefore we should be able to
use the native module.
In neutron/agent/linux/ovs_lib.py:
def get_installed_ovs_klm_version():
args = ["modinfo", "openvswitch"]
try:
cmd = utils.execute(args)
for line in cmd.split('\n'):
if 'version: ' in line and not 'srcversion' in line:
ver = re.findall("\d+\.\d+", line)
return ver[0]
except Exception:
LOG.exception(_("Unable to retrieve OVS kernel module version."))
So if we run modinfo on a system without a DKMS package we get:
$ modinfo openvswitch
filename:
/lib/modules/3.13.0-16-generic/kernel/net/openvswitch/openvswitch.ko
license: GPL
description: Open vSwitch switching datapath
srcversion: 1CEE031973F0E4024ACC848
depends: libcrc32c,vxlan,gre
intree: Y
vermagic: 3.13.0-16-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 1A:EE:D8:17:C4:D5:29:55:C4:FA:C3:3A:02:37:FE:0A:93:44:6D:69
sig_hashalgo: sha512
Because 'version' isn't provided we need an alternative way of
checking if the openvswitch module has the required features.
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https://bugs.launchpad.net/neutron/+bug/1291535/+subscriptions
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