Re: kern/55121 (wm0/ihphy0 crash during reboot)

To: thorpej%netbsd.org@localhost, kern-bug-people%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, thorpej%NetBSD.org@localhost, paul%whooppee.com@localhost
Subject: Re: kern/55121 (wm0/ihphy0 crash during reboot)
From: thorpej%NetBSD.org@localhost
Date: Sat, 28 Mar 2020 18:15:11 +0000 (UTC)

Synopsis: wm0/ihphy0 crash during reboot

Responsible-Changed-From-To: kern-bug-people->thorpej
Responsible-Changed-By: thorpej%NetBSD.org@localhost
Responsible-Changed-When: Sat, 28 Mar 2020 18:15:10 +0000
Responsible-Changed-Why:
TAke.


State-Changed-From-To: open->analyzed
State-Changed-By: thorpej%NetBSD.org@localhost
State-Changed-When: Sat, 28 Mar 2020 18:15:10 +0000
State-Changed-Why:
Analyzed.  This is because PHYs have DVF_DETACH_SHUTDOWN, so the rug is
pulled out from under the MII layer.  The fix is to remove DVF_DETACH_SHUTDOWN
from the PHY drivers and let the MII driver manage it itself.  The
DVF_DETACH_SHUTDOWN flag is seriously misguided anyway.

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