Red Hat Bugzilla – Bug 1421019
platform-linux: kernel support for IFLA_INET6_ADDR_GEN_M ODE failed to detect; assume no support
Last modified: 2017-08-01 05:22:07 EDT
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:
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
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