Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 7 Mar 1995 15:43:39 -0600 (CST)
From:      Joe Greco <jgreco@brasil.moneng.mei.com>
To:        jhs@regent.e-technik.tu-muenchen.de (Julian Howard Stacey)
Cc:        bde@zeta.org.au, bugs@FreeBSD.org
Subject:   Re: 2.0R latest boot floppy bug(?)
Message-ID:  <9503072143.AA12068@brasil.moneng.mei.com>
In-Reply-To: <199503010101.CAA07329@vector.eikon.e-technik.tu-muenchen.de> from "Julian Howard Stacey" at Mar 1, 95 02:01:29 am

next in thread | previous in thread | raw e-mail | index | archive | help
> Re.
> ----
> From: Bruce Evans <bde@zeta.org.au>
> 
> >Fatal trap 18: integer divide fault while in kernel mode
> 
> Did it once work?
> 
> Apparently the geometry obtained from the BIOS is unreliable.
> It seems to be 1023 cylinders (the driver adds 2 for bogus
> reasons), 256 heads (physically impossible) and 0 sectors
> (also physically impossible).
> ------
> I have seen all manner of weird bugs since trying (& failing ) to install on 
> a friends 386 + 8M + FPU, ISA, no cd, no ether, no exotic hardware,
> I have seen page fault in kernel mode,
> I have seen dos fdisk (yeah sure, not ours, but part of my problem)
> no able to cope with > 1023 cyls,
> checkit (a dos .exe pack) also cant cope > 1023
> I have seen my ide maxtor repeatedly incremented from 1648 cyls to
> about 1652

After repeatedly trying different things, including several different
motherboards (one was a 486DX2/80 with *very* *recent* BIOS), I have
temporarily given up hope for this poor little RLL disk.  Since it works
fine if you just go and use it, I am thinking that a possible "fix" for
me would be to hardwire in the C/H/S values... somewhere...

All of the systems come up with garbage for the probe values.  I don't
know for sure that the BIOS is lying, and find it hard to believe that
several different BIOS'es would lie in the same manner.

But I don't have time to futz with it for a few weeks, I think.

... Joe

-------------------------------------------------------------------------------
Joe Greco - Systems Administrator			      jgreco@ns.sol.net
Solaria Public Access UNIX - Milwaukee, WI			   414/342-4847



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?9503072143.AA12068>