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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!spool.mu.edu!usenet.eel.ufl.edu!news.mathworks.com!uunet!in1.uu.net!nntp.inet.fi!news.funet.fi!news.cs.hut.fi!alpha.hut.fi!jkokko From: jkokko@alpha.hut.fi (Jari Kokko) Newsgroups: comp.unix.bsd.netbsd.misc,comp.sys.sun.hardware Subject: Re: 3/60 SCSI Problem Date: 13 Oct 1996 19:05:59 GMT Organization: Älytön Wööppari Lines: 20 Distribution: world Message-ID: <53rein$7bd@hiekkalaatikko.cs.hut.fi> References: <Pine.NEB.3.93.961010144943.21595B-100000@kefron.portal.ca> <Dz4sBG.2IF@yedi.iaf.nl> <53p2mq$n2o@clarknet.clark.net> NNTP-Posting-Host: alpha.hut.fi NNTP-Posting-User: jkokko Cc: Xref: euryale.cc.adfa.oz.au comp.unix.bsd.netbsd.misc:4741 comp.sys.sun.hardware:40267 >>>I recently acquired a 3/60, and am running NetBSD/sun3 1.2 on it. >>>After a few hours running flawlessly, the computer will invariably ditch >>>me to the debugger with the following error. > >>>si: DMA timeout (while polling) >>>panic: ncr5380_scsi_cmd: polled request, abort failed >>>Stopped at _Debugger+0x6: unlk a6 >>>db> I had the same problem, without the Sun running hot. I set si_obio_options to 7 (to not use polled DMA) in sys/arch/sun3/dev/si_obio.c, compiled a new kernel and the problem disappeared. Jari Kokko -- foo