*BSD News Article 52311


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From: mike_imai@mindlink.bc.ca
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: ncr 53c810
Date: 3 Oct 1995 02:32:12 GMT
Organization: MIND LINK! - British Columbia, Canada
Lines: 49
Message-ID: <44q7bc$jlu@fountain.mindlink.net>
References: <44k1as$lm1@fountain.mindlink.net> <44n92v$kfv@uriah.heep.sax.de> <44pgiu$r0p@news.rrz.uni-koeln.de>
Reply-To: mike_imai@mindlink.bc.ca
NNTP-Posting-Host: line099.nwm.mindlink.net
X-Newsreader: IBM NewsReader/2 v1.2

In <44pgiu$r0p@news.rrz.uni-koeln.de>, se@MI.Uni-Koeln.DE (Stefan Esser) writes:
>In article <44n92v$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 Jvrg 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>

if the problem has been fixed and is in the soon to be released 2.1,
I will wait until 2.1 is released.

Thanks for the responses

mike i.