[ovs-dev] ovs 2.13.0 has lldp issues on 5.6.14 kernel

[Ilya Maximets]

On 8/19/20 6:17 PM, Chuan Han via dev wrote:
> Hi, ovs dev,
> 
> We recently hit a lldp issue, e.g., lldp functionality does not work
> reliably, when ovs was upgraded from 2.11.0 to 2.13.0 on kernel 5.6. I
> heard from other sources that to be compatible with kernel 5.5+, we need
> 2.14+. I upgraded ovs to 2.14, and it seems ovs lldp works fine now.
> 
> Is this a known issue? Is this true that for kernel 5.5+, we need 2.14+
> ovs? I checked the debian tracker for ovs
> <https://tracker.debian.org/pkg/openvswitch>. I did not see ovs 2.14 there
> yet.

Hi.  Userspace components should work fine with any kernel.  You do need
2.14+ in case you want to build out-of-tree kernel module, but, I guess,
that is not what you want.

In case you have an issue with 2.13.0 and there is no issue with 2.14, I'd
suggest to try 2.13.1.  There were many bug fixes backported since 2.13.0.

Please, give it a try and reply if it works for you.  If not, you could
try to bisect branch-2.14 to find which commit actually fixes the issue
or give us more details to take a look and find a suitable fix.

Best regards, Ilya Maximets.