This is tracking the upstream effort needed to deliver the feature request described below.

Orig Bug: https://bugzilla.redhat.com/show_bug.cgi?id=2040815
Description of problem:
There is no log message generated in the case of an ovs port, bridge, etc which drops a packet because of an oversize MTU.

How reproducible:
Create a KVM instance using the Virtio driver and configure the MTU larger than bridge or port the instance is attached and send packets larger than this egress interface. Nothing will be logged on the KVM hypervisor.

Expected results:
Expect the hypervisor to log a message to kernel ring buffer.

Additional info:
There has been some work suggested for other driver like the Intel i40 driver.
https://www.spinics.net/lists/netdev/msg719280.html

 
So I assume this needs to be assigned to the hypervisor team? Or do we need something specific from the kernel driver, then it needs to go to the Kernel team?

Maxime as this might be more in your area, can you add a comment, and re-assign it to the correct team?