From owner-freebsd-current  Mon Jan 21 21:24: 6 2002
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From: Samuel J.Greear <dragonk@evilcode.net>
Organization: GetMegabits, Inc.
To: "Kenneth D. Merry" <ken@kdm.org>, current@FreeBSD.org
Subject: Re: making a large RAMdisk?
Date: Tue, 22 Jan 2002 22:18:51 -0700
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On Monday 21 January 2002 10:20 pm, Kenneth D. Merry wrote:
> I've got a machine with 4G of RAM, and I'm trying to test all the RAM out
> to make sure it's okay.
>
> I've tried doing buildworlds, but never end up using more than 1G of RAM on
> cache, etc.
>
> I've got -current and -stable on it, and I've tried making an MFS
> filesystem under -stable.  I can't seem to get more than a 512M MFS
> filesystem allocated under -stable.  (I've got two 2G swap partitions.)
>
> I tried using md to make a swap-backed filesystem under -current, but the
> problem is that it actually seems to back it with swap.  (pstat -s shows
> disk space used, unlike MFS under -stable)
>
> Is there a way, under -current or -stable, to make a true RAMdisk that is
> around 2GB in size?
>
> Ken


If all you want to do is test the RAM:
http://www.teresaudio.com/memtest86/
  (download the Windows version and use
    dd to put the binary on a floppy)

As far as your other questions, well ....


Sam

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