Newsgroups: comp.os.msdos.desqview
Path: utzoo!utgpu!watserv1!maytag!xenitec!geoffw
From: geoffw@xenitec.on.ca (Geoffrey Welsh)
Subject: Re: QEMM & Adaptec 1542
Organization: Xenitec Consulting Services, Kitchener, ON, CANADA
Date: Sat, 11 May 1991 14:20:36 GMT
Message-ID: <1991May11.142036.17159@xenitec.on.ca>
Keywords: Bus Master Blues
References: <646@bigfoot.first.gmd.de>

In article <646@bigfoot.first.gmd.de> tmh@prosun.first.gmd.de (Thomas Hoberg) writes:
>I got a 1GB SCSI disk on my i486, some of which is used for DOS. I can't live
>without QEMM, but it presents some problems for a bus mastering controller like
>the Adaptec. Since physical and logical addresses aren't always the same in
>QEMM's V86 mode the Adaptec sometimes gets invalid addresses for DMA.

   Try QEMM's DISKBUF and/or DMABUF command line parameters.

   Geoff