Ue0/ue1 flapping

[Kristof Provost]

> On 08 Oct 2015, at 11:41, Huub Schuurmans <huubsch at xs4all.nl> wrote:
> We have now finally found that in our case a running pf is causing
> problems with the usb-lan adapters, even if all rules are flushed (!).
> Problem doesnot occur with ipfw. We have not tested flapping yet.
> 
It’s possible that this is another case of 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198868

I’m working on a checksum/TSO problem that I think is related to this.
Could you give the attached patch a try?
If I’m right about the cause this should fix things for you.

Regards,
Kristof

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