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Date:      Thu, 11 Jan 1996 13:24:33 +0100
From:      se@zpr.uni-koeln.de (Stefan Esser)
To:        dlhodge@netcom.com (Dave Hodge)
Cc:        hardware@freebsd.org, jkh@freebsd.org
Subject:   Re: More information on the DeskPro XL 575 trouble. Thanks!
Message-ID:  <199601111224.AA27117@Sysiphos>
In-Reply-To: dlhodge@netcom.com (Dave Hodge) "More information on the DeskPro XL 575 trouble. Thanks!" (Jan 10, 19:38)

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On Jan 10, 19:38, Dave Hodge wrote:
} Subject: More information on the DeskPro XL 575 trouble. Thanks!
} Hi Stefan,
} 
} Here is some information that I recovered during the boot attempt.
} 
} 
} pcibus_setup(1): mode1res=0x8000000c (0x80000000), mode2res=0x0c (0x0e)

o, well. THAT Compaq chip set ...

The next FreeBSD SNAP will use the 
PCI probe code from FreeBSD-current,
which should work a lot better on 
your system ...

Perhaps we can get Jordan to release
a pre-SNAP boot floppy, which would
help somebody else, too ...
(Hi Jordan, how about it ???)

} Gary said this may be of some importance.

Well, yes, and he was right :-)
But it won't help you, sorry ... :(

The problem is that Compaq has a long
history of chip sets which break the
(PCI) rules. I received mail from a 
Compaq engineer who told me, they did
compensate for that in software (BIOS
and drivers) and saw no need to make
their hardware behave according to 
the PCI spec. requirements!

This means it is not possible to make
a save distinction between PCI and some
EISA chip sets, and since I could not
risk loosing EISA support in FreeBSD-2.1,
it was impossible to correctly deal with 
all those Compaq chip sets :(


Your best bet is either installing to 
that SCSI drive connected to another
computer (you'll have to weaken a test,
or just compile in a file from -current).

Then you still have to make sure, that
the "nca0" driver can be made to work 
with the AMD SCSI+Ethernet Combo chip.

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/~se			  <se@ZPR.Uni-Koeln.DE>



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