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Newsgroups: comp.os.386bsd.development Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!yeshua.marcam.com!usc!cs.utexas.edu!uunet!somnet.sandia.gov!elam.mdl.sandia.gov!aflundi From: aflundi@sandia.gov (Alan F Lundin) Subject: Re: FreeBSD-current now supports DMA bounce-buffers Message-ID: <1994Mar29.135344.21939@sandia.gov> Sender: aflundi@sandia.gov (Alan F Lundin) Reply-To: aflundi@sandia.gov (Alan F Lundin) Organization: MDL, Sandia National Labs., Albuquerque, NM References: <JKH.94Mar25155604@sentnl.ilo.dec.com> Date: Tue, 29 Mar 1994 13:53:44 GMT Lines: 24 In article <JKH.94Mar25155604@sentnl.ilo.dec.com>, Jordan Hubbard <jkh@sentnl.ilo.dec.com> wrote: >Without getting too verbose and being accused of blowing our own horn >too loudly, I just wanted to announce that John Dyson and David >Greenman have recently succeeded in adding DMA bounce buffer code to >FreeBSD-current (a round of applause from those benefited). This is really great--Many thanks John and David! >What this means in plain english is that the lastest snapshot of >FreeBSD enables those folks with more than 16MB of memory and an ISA, >EISA (emulating ISA) or semi-broken VLB (Buslogic) SCSI controller >card to function properly. All those folks with 32MB of memory and >Adaptec 1542 cards may now rejoice! :-) I've seen reference to 32MB come up quite a bit, but I haven't seen discussion of say 48MB or 64MB. Is this just because 32MB motherboards are common, or is there a fundamental limitation of some sort to 32MB? --alan -- Alan Lundin <aflundi@sandia.gov>