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Subject: [Bug 172895] [ixgb] [ixgbe] do not properly determine link-state
Date: Mon, 03 Aug 2015 18:16:52 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=172895

Garrett Cooper,425-314-3911 <ngie@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|Overcome By Events          |---
             Status|Closed                      |Open

--- Comment #3 from Garrett Cooper,425-314-3911 <ngie@FreeBSD.org> ---
(In reply to Sean Bruno from comment #2)

Sorry for not commenting on this sooner.

Bottom line, Jack said it was by design in a post I made to freebsd-net some
time
ago (I can't find the link). It had something to do with Intel choosing "power
saving support" as the default vs not choosing "power saving support".

How did you try and repro the issue? What driver version/ISO did you try to
repro the issue with? Etc.

In particular, the problem is easy to repro (in my case) (if and only if) you
choose to not enable DHCP by default (which ifconfig up's the interface), and
it was particularly easy when dealing with the klds instead of having it
statically compiled into the kernel.

SFP modules might also be a factor.

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