Subject: Re: soft errors
To: Ray Phillips <r.phillips@mailbox.uq.edu.au>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-alpha
Date: 10/25/2001 21:09:48
On Thu, Oct 25, 2001 at 07:07:48PM +1000, Ray Phillips wrote:
> Dear NetBSD/alpha:
> 
> Today I upgraded manually from 1.5.1 to 1.5.2 by booting from a CD I made
> and then following these steps
> 
> # mount /dev/sd0a /mnt
> # mount /dev/sd0d /mnt/usr
> # mount /dev/cd0a /mnt2
> # cd /mnt
> # pax -zrpe -f /mnt2/alpha/binary/sets/base.tgz
> 
> etc., etc. for the other tgz files.
> 
> When pax was running many lines like this were printed on the console
> 
> cd0(asc0:4:0): soft error (corrected), info = 219232 (decimal), data = 00
> 00 000
> cd0(asc0:4:0): soft error (corrected), info = 223908 (decimal), data = 00
> 00 000
> cd0(asc0:4:0): soft error (corrected), info = 224044 (decimal), data = 00
> 00 000
> 
> I suppose these errors were produced by a hardware problem in my CD-ROM
> drive?  I used the same CD to install from scratch on another machine
> without any such messages.

yes maybe

> 
> Could you tell me which part of the system detected and corrected the
> errors and printed the error messages--would that be the kernel?  What do
> the info and data numbers mean?

It's the CD drive itself which detected and corrected the errors.
info may be the block number, I don't know for data.

--
Manuel Bouyer <bouyer@antioche.eu.org>
--