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Date: Mon, 17 Dec 2001 13:14:29 -0800
From: Mike Castle <dalgoda@ix.netcom.com>
To: Padraig Brady <padraig@antefacto.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ramdisk size clarification
Message-ID: <20011217211429.GA8826@thune.mrc-home.com>
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On Mon, Dec 17, 2001 at 08:41:32PM +0000, Padraig Brady wrote:
> and also there is no upper limit on the amount of RAM used,
> so the following will kill your system (well it did for me):
> dd if=/dev/zero of=/dev/ram0

Bug in recent 2.4.*.  It *should* stop.  One line patch has been
posted to the linux-kernel list a couple of times.  Check the archive.
It's probably in the recent pre-release kernels as well.

As a work around, try the following:

count=`blockdev --getsize /dev/ram0`
bsize=`blockdev --getss /dev/ram0`
dd if=/dev/zero of=/dev/ram0 count=${count} bs=${bsize}

-- 
     Mike Castle      dalgoda@ix.netcom.com      www.netcom.com/~dalgoda/
    We are all of us living in the shadow of Manhattan.  -- Watchmen
fatal ("You are in a maze of twisty compiler features, all different"); -- gcc
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