From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Sun, 17 Mar 1996 19:44:23 -0500
From: jim mckie jmk@plan9.bell-labs.com
Subject: CPU server
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Message-ID: <19960318004423.njUE9VQ91Tm52cVgT02jn82nylAaqzQYKa-pFtfulV4@z>

There are no busmastering ethernet devices in the distribution;
the soundblaster and floppy use the generic DMA routines which
do the check and provide a buffer if necessary.

However, it's unlikely - Plan 9 does not do DMA to user
memory, only to kernel buffers. The space allocated by the
kernel at boot time for dynamic allocation is probably
within the first 16Mb.

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To:	cse.psu.edu!9fans
Subject: Re: CPU server 
In-reply-to: Your message of "Sun, 17 Mar 1996 15:03:05 EST."
             <96Mar17.150802est.78842@colossus.cse.psu.edu> 
Date:	Sun, 17 Mar 1996 16:37:44 -0500
From:	Scott Schwartz <galapagos.cse.psu.edu!schwartz>
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"jim mckie" <jmk@plan9.bell-labs.com> writes:
| The PC fileserver code has always been aware of this, the cpuserver/terminal
| code needs some fixes which went out recently.

What about devices other than disks?  If I get more ram for my
terminal, will ethernet, soundblaster, etc, break?