[ovs-discuss] Fedora 25+ with OVS kernel trainted?

Timothy M. Redaelli tredaelli at redhat.com
Fri Aug 4 16:24:45 UTC 2017

On 07/31/2017 06:01 PM, Ziemowit Pierzycki wrote:
> Hi,
> I have a hypervisor with Fedora 25 on a few machines and ever since
> upgrading I started getting occasional messages:
> I noticed it's happening with Fedora 26 too.  I'm using kernel
> 4.11.12-200.fc25.x86_64 in this particular example.   I'm using OVS
> 2.5.0-4.  Am I supposed to turn off GSO everywhere?  I thought it was
> supposed to automatic.  Thanks,

you can try to disable only UFO (ethtool -i dev ufo off) since it'll be
disabled in upstream kernel [1]


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