Excess entries in logs

[Oleksiy Molchanov]

Need to get rid of entries like

netlink: 20 bytes leftover after parsing attributes

that are spamming /var/log/messages

[Stanislaw Bogatkin (sbogatkin)]

I think that it is not a fuel-lib task, cause it is a bug either in libnetlink or libnl. We can hide it, but we shouldn't.

[Aleksander Mogylchenko (amogylchenko)]

I'm not sure that description is full. Please check this bug from Debian:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=664064

Library itself won't spam, there is something using it. Since we do not know what exactly, additional investigation should be performed.

[TorstenSchlabach (tschlabach)]

It may be worth to just upgrade the kernel, for example form here:

http://elrepo.org/linux/kernel/el6/x86_64/RPMS/

3.10.75-1 (the "long term", lt kernel) seems to work quite well on CentOS 6.5 at a first glance.

[TorstenSchlabach (tschlabach)]

> Library itself won't spam, there is something using it.

Yes, iproute2 possibly which is newer than the kernel in our case. See comments in bug #1449914.

[Alexei Sheplyakov (asheplyakov)]

In general iproute is tightly bound to the kernel netlink ABI. In particular iproute-3.10.0 [1] included in MOS 6.1
and 7.0 expects netlink ABI compatible with (RHEL) kernel 3.10. Thus using it with 2.6.32 kernel (shipped with
CentOS 6.6) is not such a nice idea.

As far as I understand iproute has been upgraded to get network namespaces working (at least to some extent).
So the annoying warning is the price for (semi-) working network namespaces.

[1] http://mirror.fuel-infra.org/fwm/7.0/centos/os/x86_64/Packages/iproute-3.10.0-14.el6.mira3.x86_64.rpm

[Alexei Sheplyakov (asheplyakov)]

Fixing this minor problem requires major kernel modifications (or an upgrade to the 3.10 RHEL 7 kernel). Marking as Won't Fix.

[Zunyi (ngaa)]

I have the same problem at Fuel 6.1 CentOS 6.5.
I download CentOS 6.7's kernel: kernel-2.6.32-573.el6.x86_64.rpm
and then yupgrade kernel, the problem has solved.