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Date:      Wed, 27 Mar 2013 14:36:32 -0400 (EDT)
From:      Benjamin Kaduk <kaduk@MIT.EDU>
To:        Velcro Leaf <velcroleaf@rocketmail.com>
Cc:        "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>
Subject:   Re: filesystems don't properly dismount
Message-ID:  <alpine.GSO.1.10.1303271434190.9389@multics.mit.edu>
In-Reply-To: <1364403642.40164.YahooMailNeo@web164501.mail.gq1.yahoo.com>
References:  <1364380546.45116.YahooMailNeo@web164504.mail.gq1.yahoo.com> <alpine.GSO.1.10.1303271239300.9389@multics.mit.edu> <1364403642.40164.YahooMailNeo@web164501.mail.gq1.yahoo.com>

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On Wed, 27 Mar 2013, Velcro Leaf wrote:

> Benjamin Kaduk wrote:
>
>> The default NFS implementation did not change between 9.0 and 9.1.
>> Per the 9.0 release notes, you can change your kernel configuration to c=
ontrol=20
>> which implementation is used -- NFSCL/NFSD are the "new" versions, and=
=20
>> NFSCLIENT/NFSSERVER are the old ones.=A0 Are you running GENERIC or a cu=
stom=20
>> configuration?
>
> It's a GENERIC kernel, and I'm not actually using any networked=20
> filesystems.=A0 I saw that the NFS stuff happened prior to 9.0-RELEASE,=
=20
> but I'm looking for any simple way to change the way filesystems are=20
> handled to see if it'll stop the ugly dismounts.
>
> I'll make a custom kernel with only the above changes and see if=20
> anything different happens.
>

If you don't have any networked filesystems mounted, then I would be very=
=20
surprised if changing the version of NFS built into your kernel would have=
=20
any effect here.

At this point, I think the most useful information would be the kernel=20
messages from shutdown time, printed on the console.  Do you have a serial=
=20
console (makes this easy)? Otherwise, you may have to take a picture or=20
video of the machine as it shuts down.

-Ben Kaduk
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