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Date:      Tue, 19 Jun 2001 22:57:27 -0400 (EDT)
From:      Mikhail Teterin <mi@aldan.algebra.com>
To:        phk@critter.freebsd.dk, dillon@freebsd.org
Cc:        current@freebsd.org
Subject:   Re: mdconfig and _virtual_ memory 
Message-ID:  <200106200257.f5K2vS628250@aldan.algebra.com>
In-Reply-To: <90992.991896987@critter>

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So, Matt, any comments?

On  7 Jun, Poul-Henning Kamp wrote:
> In message <200106061419.f56EJYN18798@aldan.algebra.com>,
>	Mikhail Teterin writes:
> 
>>When I moved to mdconfig, I figured  I have to use ``-t swap'' for the
>>same effect, but  it seems, I was wrong --  apparently, ``swap'' means
>>the filesystem  will always hit the  disk, even if there  is plenty of
>>RAM to go around. My suspicion was further confirmed, by disabling the
>>swapping at all -- the mdconfig-ed device stopped working -- disklabel
>>got ENOMEM.
>
> The swap backing in  md(4) is a straight copy of  the code which lived
> in vn(4). I'm not terribly familiar with that code, but I would expect
> that it would work with no swap space as well.
>
> Your man is probably Matt Dillon...

	-mi



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