[Bug 256375] iflib/if_em: unplugging network cable causes huge KTorrent slowdown

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 03 Jun 2021 15:14:03 UTC

--- Comment #7 from Eric Joyner <erj@freebsd.org> ---
(In reply to Alexey Dokuchaev from comment #6)

That's something I would've suggested, too. The iflib_media_status() function
already calls the driver's admin status function before calling the driver's
media status function, so I don't think it's strictly necessary to call the
admin task again (and thereby call the driver's admin status function
more-or-less immediately afterwards!).

I need to actually check, but the admin status function is probably being
called every half second, and maybe something in there that checks link status
is taking too long, especially when there is no media?

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