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Date:      Fri, 15 Jul 2005 21:14:12 +0200
From:      Matthias Buelow <mkb@incubus.de>
To:        Kevin Oberman <oberman@es.net>, freebsd-stable@freebsd.org
Subject:   Re: dangerous situation with shutdown process
Message-ID:  <20050715191412.GA1374@drjekyll.mkbuelow.net>
In-Reply-To: <20050715185413.GI37261@funkthat.com>
References:  <42D6B117.5080302@plab.ku.dk> <20050714191449.A8A615D07@ptavv.es.net> <20050714195253.GA23666@drjekyll.mkbuelow.net> <20050715185413.GI37261@funkthat.com>

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John-Mark Gurney wrote:

>With non-written to sectors getting trashed with the cache enabled,
>barriers don't mean squat...

Of course if you pound the disk with a hammer, then barriers also
won't help. Just because with a few disks perhaps it won't work at
all doesn't mean that one shouldn't at least try and get it working
for perhaps the 90% where it would work in order to reduce the
possibility of corruption by as much as possible. I mean, anything
is better than the current situation where apparently nothing is
done at all.

Why am I arguing in an uphill battle here? Is data safety no longer
important to the FreeBSD community? Such issues should not even
have to be discussed at all!

mkb.



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