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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!news.kei.com!news.mathworks.com!tank.news.pipex.net!pipex!howland.reston.ans.net!Germany.EU.net!news.dfn.de!RRZ.Uni-Koeln.DE!se From: se@MI.Uni-Koeln.DE (Stefan Esser) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: ncr 53c810 Date: 2 Oct 1995 20:03:42 GMT Organization: Institute for Mathematics, University of Cologne, Germany Lines: 41 Message-ID: <44pgiu$r0p@news.rrz.uni-koeln.de> References: <44k1as$lm1@fountain.mindlink.net> <44n92v$kfv@uriah.heep.sax.de> NNTP-Posting-Host: sysiphos.mi.uni-koeln.de To: <mike_imai@mindlink.bc.ca> Bcc: j@uriah.heep.sax.de (J Wunsch),se In article <44n92v$kfv@uriah.heep.sax.de>, j@uriah.heep.sax.de (J Wunsch) writes: |> <mike_imai@mindlink.bc.ca> wrote: |> |> >ncr0 < ncr53x810> inta, irq10 on pci0:9 |> >reg20: virtual 0xf3166000 |> >physical 0xc0000000 |> >Core test failed: host wrote 1, ncr read 1 |> >Core test failed: ncr wrote 2, host read 1 |> >Core test failed: ncr wrote 2, host read -1 |> >Cache incorrectly configured. |> |> >What does the error mean & how can i work around it? |> |> Looks like your chipset is broken. Try turning off write-back |> caching. While Jörg is right in general, I have to correct him in this particular case ... (I've got to know, since it's at least partially my fault, that the code breaks on your system :) Anyway, the PCI code in 2.0R didn't know how to deal with systems, that could only map PCI chips into a small range of addresses (i.e. combined PCI+VLB motherboards). The code has been fixed, and I might be able to send you a patch that makes your system work (which obviously only will help you, if you got access to some other system to build a modified kernel on ...) Let me know whether you want to give it a try ... Regards, STefan -- Stefan Esser, Zentrum fuer Paralleles Rechnen Tel: +49 221 4706021 Universitaet zu Koeln, Weyertal 80, 50931 Koeln FAX: +49 221 4705160 ============================================================================== http://www.zpr.uni-koeln.de/staff/esser/esser.html <se@ZPR.Uni-Koeln.DE>