Interface renaming fails for some NICs on kernel 4.4

[Mikhail Chernik]

Found on MOS 9.2 snapshot 688

Description:
for some network card interface renaming process fails, so some interfaces end up with name renameX.

The numbers seem to depend on NIC initialization order and this can cause deployment failure.

This issue is *not* reproduced neither with kernel 3.13 nor on MOS 10.0 (build 1237) kernel 4.4

i40e: http://paste.openstack.org/show/595077/
mlx4: http://paste.openstack.org/show/595055/

[Dmitry Teselkin (teselkin-d)]

Found the following in 70-persistent-net.rules on node-2 (0c:c4:7a:6c:88:fe) see attached file.

[Dmitry Teselkin (teselkin-d)]

Found in user_data file (configdrive volume sda6):
-----
ADMIN_MAC=0c:c4:7a:6c:88:fe
ADMIN_IF=$(echo 0c:c4:7a:6c:88:fe_enp10s0f0,0c:c4:7a:6c:88:ff_enp10s0f1,68:05:ca:30:01:c4_ens11f0,68:05:ca:30:01:c1_ens11f1,68:05:ca:30:00:b8_ens3f0,68:05:ca:30:00:b9_ens3f1,68:05:ca:30:01:c0_rename6,68:05:ca:30:01:c5_rename9 | sed 's/[,=]/\n/g' | grep "$ADMIN_MAC" | cut -d_ -f2 | head -1)
-----

[Dmitry Teselkin (teselkin-d)]

To fix fcoe renaming the following file should be added to '/etc/udev/rules.d' - 80-fcoe-net-names-generator.rules (see attachement). IMPORTANT - it's index must be not lower than 75.

With this file network interfaces 'renameX' are renamed correctly to 'enp' intefaces:
-----
root@bootstrap:/etc/udev/rules.d# ip l
...
7: enp129s0f0: <BROADCAST,MULTICAST> mtu 2158 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 68:05:ca:30:01:c4 brd ff:ff:ff:ff:ff:ff
...
9: enp129s0f1: <BROADCAST,MULTICAST> mtu 2158 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 68:05:ca:30:01:c5 brd ff:ff:ff:ff:ff:ff
-----

So this could be fixed by custom udev rule added to /etc/udev/rules.d

[Dmitry Teselkin (teselkin-d)]

initrd image for bootstrap is generated by fuel-agent so I'm passing the bug to fuel-sustaining team.

[Alexey Shtokolov (ashtokolov)]

https://review.openstack.org/#/c/421877/

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/fuel-agent 11.0.0.0rc1 release candidate.

[Sergii Rizvan (srizvan)]

Here is another patch that should be merged https://review.openstack.org/#/c/424741

[Denis Meltsaykin (dmeltsaykin)]

https://review.openstack.org/#/c/424741/ is merged

[Ilya Bumarskov (ibumarskov)]

Can't reproduce the error on a test environment. In accordance with our policy, fix should be verified on the customer side.