From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <13426df10710281013k30690724ld918aab091536b53@mail.gmail.com>
Date: Sun, 28 Oct 2007 10:13:54 -0700
From: "ron minnich" <rminnich@gmail.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] new 9load panic
In-Reply-To: <23cf5de2aa07bd09b640f37710cfa76d@akira.nop.cx>
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	<23cf5de2aa07bd09b640f37710cfa76d@akira.nop.cx>
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On 10/27/07, Tim Wiess <tim@nop.cx> wrote:
> i also just got something similar while attempting to install
> the new iso within qemu....
>
> PS1...Plan 9 from Bell Labs
> ELCR: 0A00
> apm ax=f000 cx=f000 dx=f000 di=fff0 dbx=9e22 esi=-f0010
> bios0: drive: 0x80: 10737418240 bytes, type 3

280000000 So I assume it has found the CD, and the install is usually
this size IIRC.

> biosinit: sorry, only one bios drive; can't read last one

I assume this means there is only the CDROM on the channel? Thta would
be expected.

> dev A0 port 1F0 config 0040 capabilities 0B00 mwdma 0007 udma 203F      LLBA sectors 20971520

This translates to 280000000 bytes @ 512 bytes/sector.

> dev A0 port 170 config 85C0 capabilities 0300 mwdma 0007 udma 203F
> found partition sdD0!cdboot; 49952+1440
> sectread: bios failed to read 512 @ off 1073741822 from 80

oops. The read failed?

> biosread: failed to read 512 @ off 549755812864 of 80, want 512 got -1
^^^^^^^^^^^^^^^^^^^^^^^^^^^
I think it is safe to say your problem is here. The other report had
the same thing.
The first offset is 3FFFFFFE, the second is  7FFFFFFC00, which is interesting.


> using sdD0!cdboot!plan9.ini
> .FLAGS=286 TRAP=e ECODE=0 PC=3f
>   AX 80017fdb  BX 80036900  CX 00000020  DX 80017f5c
>   SI 00000000  DI 80017f66  BP 80001250
>   CS 0010 DS 0008  ES 0008  FS 0008  GS 0008
>   CR0 80000011 CR2 78512900 CR3 0000c000
> panic: exception/interrupt 14

This is a sideshow, I think. The reads failed and it's just running
with bogus data.

>>From your more complete list:

> > sectread: bios failed to read 512 @ off 0 from 80
> > biosread: failed to read 512 @ off 0 of 80, want 512 got -1
> > sectread: bios failed to read 512 @ off 1073741822 from 80
> > biosread: failed to read 512 @ off 549755812864 of 80, want 512 got -1

not even the read @ 0 worked. You've got a problem with BIOS I/O. I
wonder what it is?

ron