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Date:      Wed, 10 Dec 2014 15:28:36 +0100
From:      Juan =?iso-8859-1?b?UmFt824=?= Molina Menor <listjm@club-internet.fr>
To:        andrew clarke <mail@ozzmosis.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: System hang on shutdown when running freebsd-update
Message-ID:  <54885894.2060006@club-internet.fr>
In-Reply-To: <20141210133658.GA12721@ozzmosis.com>
References:  <548846F8.4080208@club-internet.fr> <20141210133658.GA12721@ozzmosis.com>

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El 10/12/2014 14:36, andrew clarke escribió:
> On Wed 2014-12-10 14:13:28 UTC+0100, Juan Ramón Molina Menor (listjm@club-internet.fr) wrote:
>
>>>> / Another update. I narrowed down the issue due to /sbin/init being
>>>> replaced. This might be the magic that freebsd-update does to make the
>>>> crash happen. (Although there might be more situations that cause a
>>>> hang.)
>>>
>>> />/ I can completely reliably trigger the hang on a default
>>> />/ 10.1-RELEASE install on UFS2 in VMware Fusion with the following
>>>>> / procedure:
>>> />/
>>> />/  # chflags noschg /sbin/init
>>> />/  # cp -Rp /sbin/init /sbin/init2
>>> />/  # rm -f /sbin/init
>>> />/  # mv /sbin/init2 /sbin/init
>>> />/  # chflags schg /sbin/init
>>> />/  # reboot
>>> />/  => Hang after "All buffers synced."
>>> /These commands do not trigger the issue here on a 10.1-RELEASE on VMware
>>> Player, but do it in a real system with the same release, both i386.
>>> When I last freebsd-updated this latter machine from 10.0 to
>>> 10.1-RELEASE, I also remember seeing the hang on shutdown.
>>>
>>> Hope it helps,
>>> Juan
>>
>> The hang occurs again when running freebsd-update to install the
>> security advisories of today on a 10.1-RELEASE i386. No problem under
>> VMWare, same version.
>>
>> Best regards,
>> Juan
>
> A FreeBSD 10.1-REL amd64 VM here also hangs after /sbin/reboot is run,
> after installing updates with freebsd-update. The VM runs under
> VirtualBox on an Ubuntu 14.04 host.
>
> On hard-resetting the VM, it appears the filesystem (UFS) wasn't flushed:
>
> Dec 11 00:29:52 vbox-freebsd kernel: WARNING: / was not properly dismounted

Yes, I forgot that, same here on bare metal.


>
> Regards
> Andrew
>



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