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Date:      Wed, 06 Nov 2019 19:52:54 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 241765] em(4) - does not preserve link status across suspend/resume
Message-ID:  <bug-241765-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241765

            Bug ID: 241765
           Summary: em(4) - does not preserve link status across
                    suspend/resume
           Product: Base System
           Version: 12.1-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: dirkx@webweaving.org

With an upgrade to 12.1 (from an early 11) -- the em(4) gigabit wired ethernet
drive (on PCI) does not seem to preserve the link status across suspend/resume
cycles on various Intel and Dell laptops.

To reproduce/test: 

- default 12.1 minimal install.
- connect no ethernet cable.
- boot (em0 will be up by default)
- 'sudo ifconfig em0 down'
- suspend by closing lid or 'zzz'.
- resume 5 mins later,
- observe that em0 is back up.

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