From owner-freebsd-questions Thu Apr 25 18:35:56 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id SAA26689 for questions-outgoing; Thu, 25 Apr 1996 18:35:56 -0700 (PDT) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id SAA26682 for ; Thu, 25 Apr 1996 18:35:51 -0700 (PDT) Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.12/8.6.9) id LAA27377; Fri, 26 Apr 1996 11:02:06 +0930 From: Michael Smith Message-Id: <199604260132.LAA27377@genesis.atrad.adelaide.edu.au> Subject: Re: bounce buffers To: shovey@buffnet.net (steve hovey) Date: Fri, 26 Apr 1996 11:02:06 +0930 (CST) Cc: alk@think.com, freebsd-questions@freebsd.org In-Reply-To: from "steve hovey" at Apr 25, 96 01:30:18 pm MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk steve hovey stands accused of saying: > > On Thu, 25 Apr 1996, Tony Kimball wrote: > > > > > Under what circumstances are bounce buffers indicated? > > Are they not indicated in all systems using >16MB DRAM? > > My impression was that all such systems would require > > bounce buffers in order to support DMA generally, while > > no other systems would require bounce buffers. > > > > I thought they were needed if you have swap on a scsi. No! > Steve Hovey -- shovey@buffnet.net -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] Collector of old Unix hardware. "Where are your PEZ?" The Tick [[