9fans archive / 1996 / 03 / 61 /    prev next

From: jim mckie jmk@pla...
Subject: CPU server
Date: Sun, 17 Mar 1996 19:44:23 -0500

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 
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Date:	Sun, 17 Mar 1996 16:37:44 -0500
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"jim mckie" <jmk@pla...> 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?