[Bug 210901] em0 stores packets somewhere and lets them out slowly under load.

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210901

--- Comment #6 from Kevin Bowling <kbowling at freebsd.org> ---
(In reply to dgilbert from comment #5)
Yes, the intel driver was substantially rewritten, so it would be necessary to
retest to continue, and will need some active data collection on top of that
once the symptoms are produced.

It's a big topic to discuss jumbo frames in general, I would agree with your
assessment to not use them.  I have secondary concern you might have run into
memory fragmentation issues, the way larger frames are handled is sub-optimal
in FreeBSD.  Although that is not a driver bug so it still makes sense to close
this PR out.

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