** Changed in: linux (Ubuntu)
Status: In Progress => Confirmed
** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
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https://bugs.launchpad.net/bugs/1496942
Title:
Infiniband (mellanox) SR-IOV and libvirt + libnl problems
Status in linux package in Ubuntu:
Confirmed
Bug description:
When trying to start an IB SR-IOV guest by using the following XML:
<interface type='hostdev' managed='yes'>
<mac address='52:54:00:70:ba:16'/>
<source>
<address type='pci' domain='0x0000' bus='0x08' slot='0x00'
function='0x1'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08'
function='0x0'/>
</interface>
following the Mellanox SR-IOV guide, we are able to start guests using
kernel 3.16 (Utopic).
We are NOT able to start guests using 3.13 OR 3.19. The following
error occurs:
2015-09-17 02:25:07.208+0000: 52157: info : libvirt version: 1.2.12, package:
1.2.12-0ubuntu14.1~cloud0
2015-09-17 02:25:07.208+0000: 52157: error : virSecurityDriverLookup:80 :
unsupported configuration: Security driver apparmor not enabled
2015-09-17 02:25:42.308+0000: 52281: info : libvirt version: 1.2.12, package:
1.2.12-0ubuntu14.1~cloud0
2015-09-17 02:25:42.308+0000: 52281: error : virSecurityDriverLookup:80 :
unsupported configuration: Security driver apparmor not enabled
2015-09-17 02:25:48.996+0000: 52274: error : virNetDevParseVfConfig:1905 :
internal error: missing IFLA_VF_INFO in netlink response
2015-09-17 02:25:49.006+0000: 52274: error : virFileReadAll:1347 : Failed to
open file '/var/run/libvirt/hostdevmgr/ib0_vf0': No such file or directory
2015-09-17 02:25:49.006+0000: 52274: error : virFileReadAll:1347 : Failed to
open file '/var/run/libvirt/qemu/ib0_vf0': No such file or directory
So probably there is some regression in between 3.16 and 3.19 for the
IFLA_VF_INFO feature from netlink AND this has to be backported to
kernel 3.13 for Trusty to have IB SR-IOV working.
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