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Date:      Mon, 09 Mar 2015 23:05:09 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 195458] Hang on shutdown/root unmount after FreeBSD 10.1R upgrade
Message-ID:  <bug-195458-8-fbqgY9CLJk@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-195458-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-195458-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195458

rkoberman@gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |rkoberman@gmail.com

--- Comment #45 from rkoberman@gmail.com ---
I have succeeded in working around the issue by:
# shutdown now
# sync
wait a minute
# reboot

Since I started doing this I have not had my system hang. Note that "shutdown
now" followed by a reboot is functionally identical to "shutdown -r now" except
for the very long delay between termination of multi-user services the actual
reboot. I am guessing that something is flushing. I really doubt the "sync" is
required, but I do it just to be sure.

I have no explanation as to why this seems to work, but it has for the three
updates I have used it on. I can only hope that this gives someone a clue as to
what the actual issue is.

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