From owner-freebsd-hackers  Fri Oct  1 12:40:28 1999
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Message-ID: <37F511AE.1400BCB8@syprix.se>
Date: Fri, 01 Oct 1999 21:55:26 +0200
From: Stefan Lindgren <stefan@syprix.se>
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Organization: Syprix AB
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To: Soren Schmidt <sos@freebsd.dk>
Cc: freebsd-hackers@freebsd.org, freebsd-hardware@freebsd.org
Subject: Re: Tyan Dual PPRO Bios 5.1 problem...
References: <199909300633.IAA29925@freebsd.dk>
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Thanks for the help Soren,

The disk is a Seagate Medalist 6.2 GB UDMA
But now I have tested all PIO modes(0 - 4 and auto) and disabled udma.
It still doesn't work.
I get different results when I change PIO. Once I got some message like:
Page fault: Couldn't init disk...(something)

Any clue?

/stefan

Soren Schmidt wrote:
> 
> It seems Stefan Lindgren wrote:
> > I get page faults, kernel panic(trap 12) and the system won't boot.
> >
> > It looks that it could be memory related, but the system works fine with
> > the EIDE disk.
> 
> Hmm, probably because the system is getting bad data from the drive.
> Are you using (U)DMA ??, try to switch that off in the driver, or try to
> "dumb down" the drive in the BIOS (you can set the speed to PIO3
> there and still run DMA allthough slower) that helped me and the
> drive I couldn't get to work otherwise. BTW what make/type of drive
> is it, it might be a known bad one....
> 
> -Soren


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