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Bug 1421019

Summary: platform-linux: kernel support for IFLA_INET6_ADDR_GEN_M ODE failed to detect; assume no support
Product: Red Hat Enterprise Linux 7 Reporter: Zeng Yiquan <yzeng>
Component: NetworkManagerAssignee: Thomas Haller <thaller>
Status: CLOSED ERRATA QA Contact: Desktop QE <desktop-qa-list>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.2CC: atragler, bgalvani, fgiudici, lrintel, rkhan, sukulkar, thaller, vbenes
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: NetworkManager-1.8.0-0.2.git20170215.1d40c5f4.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-08-01 09:22:07 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Zeng Yiquan 2017-02-10 06:31:21 UTC 
Description of problem:

Feb 10 14:09:08 R72 NetworkManager[1127]: <info>  [1486706948.1343] Loaded device plugin: NMWifiFactory (/usr/lib64/NetworkM
anager/libnm-device-plugin-wifi.so)
Feb 10 14:09:08 R72 NetworkManager[1127]: <info>  [1486706948.1368] Loaded device plugin: NMTeamFactory (/usr/lib64/NetworkM
anager/libnm-device-plugin-team.so)
Feb 10 14:09:08 R72 NetworkManager[1127]: <info>  [1486706948.1380] Loaded device plugin: NMAtmManager (/usr/lib64/NetworkMa
nager/libnm-device-plugin-adsl.so)
Feb 10 14:09:08 R72 NetworkManager[1127]: <warn>  [1486706948.1405] platform-linux: kernel support for IFLA_INET6_ADDR_GEN_M
ODE failed to detect; assume no support
Feb 10 14:09:08 R72 NetworkManager[1127]: <info>  [1486706948.1406] device (lo): link connected
Feb 10 14:09:08 R72 NetworkManager[1127]: <info>  [1486706948.1443] manager: (lo): new Generic device (/org/freedesktop/Netw
orkManager/Devices/0)
Feb 10 14:09:08 R72 NetworkManager[1127]: <info>  [1486706948.1479] manager: (eno16777736): new Ethernet device (/org/freede
sktop/NetworkManager/Devices/1)
Feb 10 14:09:08 R72 nm-dispatcher: req:1 'hostname': new request (4 scripts)
Feb 10 14:09:08 R72 nm-dispatcher: req:1 'hostname': start running ordered scripts...
Feb 10 14:09:08 R72 NetworkManager[1127]: <info>  [1486706948.1541] device (eno16777736): state change: unmanaged -> unavail
able (reason 'managed') [10 20 2]

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Disable IPv6 follow below KCS:
https://access.redhat.com/solutions/8709

On RHEL7.2, I take action as below:

# vim /etc/default/grub
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rhgb quiet ipv6.disable=1"
# grub2-mkconfig -o /boot/grub2/grub.cfg
# reboot

2. Update NetworkManager

# yum update NetworkManager

3. then we'll see the error message in /var/log/message

Actual results:

We'll see the error as the bug title.

Expected results:


Additional info:
Comment 2 Thomas Haller 2017-02-10 14:15:56 UTC 
it's just a warning, not an error. It can be safely ignored.

does it cause any problems?


Fixed upstream by https://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?id=6b03eacb348d2d8266b17be15bacbdaf7737e2e5
Comment 4 errata-xmlrpc 2017-08-01 09:22:07 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2017:2299