From owner-freebsd-net@freebsd.org  Fri Apr 14 13:45:30 2017
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Subject: [Bug 218653] Intel e1000 network link drops under high network load
Date: Fri, 14 Apr 2017 13:45:30 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D218653

--- Comment #2 from nn <freebsd@t.lastninja.net> ---
Apologies, I forgot to mention. I was able to upgrade to 11.0-RELEASE after
running the freebsd-update about 30 or so times -- I ended up getting lucky
where the network connection didn't drop, and was able to continue with the
upgrade.

The above comments about disabling tso4/vlanhwtso was in the 11.0 release.

Therefore the em0 watchdog timer under network load issue seems to persist =
even
though bug 200221 resolved it for 10.3.

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