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Xref: sserve comp.os.linux.misc:15596 comp.os.linux.development:9476 comp.os.386bsd.development:2179 comp.os.386bsd.questions:10457 comp.sys.ibm.pc.hardware.systems:3187 comp.sys.ibm.pc.hardware.storage:5846 comp.sys.ibm.pc.hardware.misc:5664 comp.periphs.scsi:20745 Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!bunyip.cc.uq.oz.au!munnari.oz.au!spool.mu.edu!howland.reston.ans.net!agate!darkstar.UCSC.EDU!news.hal.COM!olivea!decwrl!pa.dec.com!usenet.pa.dec.com!jkh From: jkh@nx.ilo.dec.com (Jordan Hubbard) Newsgroups: comp.os.linux.misc,comp.os.linux.development,comp.os.386bsd.development,comp.os.386bsd.questions,comp.sys.ibm.pc.hardware.systems,comp.sys.ibm.pc.hardware.storage,comp.sys.ibm.pc.hardware.misc,comp.periphs.scsi Subject: Re: BusLogi 445S and DMA Channel (NEW ANSWER) Date: 26 May 1994 23:12:18 GMT Organization: Digital Equipment Corporation, Galway Ireland Lines: 20 Distribution: world Message-ID: <JKH.94May27001218@nx.ilo.dec.com> References: <2rnjgs$g1l@news-rocq.inria.fr> <2rs5i1$6tl@news-rocq.inria.fr> <2rs8go$6tl@news-rocq.inria.fr> <2s2j80$1go@ebh.eb.ele.tue.nl> NNTP-Posting-Host: nx.ilo.dec.com In-reply-to: wjw@ebh.eb.ele.tue.nl's message of 26 May 1994 18:37:20 +0200 In article <2s2j80$1go@ebh.eb.ele.tue.nl> wjw@ebh.eb.ele.tue.nl (Willem Jan Withagen) writes: Because this starts me wonder which kernel I should use with my 445S REV D board under FreeBSD. I'm using the AHA kernel which works great for 16Mb But I'm waiting for the 3.37 Eprom to go to 32MB. Should I use the BT kernels for FreeBSD You can use the Bt driver *now* for your Rev D board with 16MB - I do this now. If we can get the bounce-buffering working for 1.1.5, you'll also be able to go to 32MB with it. Whether or not the 3.37 eprom fixes the >16MB DMA problem is, however, still an open question for ANY of the operating systems. Buslogic claims success with 3.37, yet I've now seen more than a few reports that tend to indicate that they did NOT fix the problem. If this is the case, then the worst that will happen with your FreeBSD 1.1.5 system is that it'll simply "bounce" DMA >16MB and be a very small degree slower, but it'll work. You'll know whether or not we got the bounce-buffer stuff working properly in 1.1.5 when you see the release notes! Jordan