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Newsgroups: comp.unix.bsd.netbsd.misc Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!munnari.OZ.AU!metro!metro!asstdc.scgt.oz.au!nsw.news.telstra.net!act.news.telstra.net!vic.news.telstra.net!news.mira.net.au!inquo!in-news.erinet.com!bug.rahul.net!rahul.net!a2i!samba.rahul.net!rahul.net!a2i!olivea!hookup!usenet.eel.ufl.edu!news.mathworks.com!fu-berlin.de!news.belwue.de!news.uni-stuttgart.de!news.ruhr-uni-bochum.de!news.rwth-aachen.de!newsserver.rrzn.uni-hannover.de!tubsibr!infbss ys!hannken From: hannken@eis.cs.tu-bs.de (Juergen Hannken-Illjes) Subject: Re: DMA beyond end of ISA Message-ID: <DqMABn.GJ9@ips.cs.tu-bs.de> Sender: news@ips.cs.tu-bs.de (News Software) Nntp-Posting-Host: serv1.eis.cs.tu-bs.de Organization: TU Braunschweig,Informatik,EIS,West Germany References: <4lqvhh$aa@kayless.thalgah.org> Date: Mon, 29 Apr 1996 09:28:34 GMT Lines: 19 In article rlf@thalgah.org (Robert Leon Felix) writes: > >OK an easy one for you this time, 'DMA beyond end of ISA', I've >heard of this before but know not of the fix. > >I know it's something to do with >16MB RAM and hope (pray) it doesn't >mean I need to change my controller! > >Specs >32MB RAM >scsi Adaptec 1542CF controller >1GB disk Adaptec 1542CF's are busmaster dma controllers. There is no support for busmaster dma on ISA machines with more than 16MB Ram (yet). There is an unofficial patch for NetBSD-current at ftp://bseis.eis.cs.tu-bs.de/pub/hannken/isadma-patch -- Juergen Hannken-Illjes - hannken@eis.cs.tu-bs.de - TU Braunschweig (W Germany)