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Date:      Sun, 25 Oct 2009 17:37:16 +0100
From:      "Julian H. Stacey" <jhs@berklix.com>
To:        Matthias Apitz <guru@unixarea.de>
Cc:        freebsd-current@freebsd.org
Subject:   Re: DVD: kernel: g_vfs_done():acd0[READ(offset=32768, length=2048)]error = 5 
Message-ID:  <200910251637.n9PGbGTq062659@fire.js.berklix.net>
In-Reply-To: Your message "Sun, 25 Oct 2009 16:50:45 %2B0100." <20091025155045.GA6012@current.Sisis.de> 

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Hi,
Reference:
> From:		Matthias Apitz <guru@unixarea.de> 
> Reply-to:	Matthias Apitz <guru@unixarea.de> 
> Date:		Sun, 25 Oct 2009 16:50:45 +0100 
> Message-id:	<20091025155045.GA6012@current.Sisis.de> 

Matthias Apitz wrote:
> 
> Hello,
> 
> I have a problem with one DVD (i.e. others mount fine on 9.0-CURRENT
> r197801).
> 
> The DVD was 2-3 times burned on a 8-CURRENT system with:
> 
> # growisofs -speed=1 -Z /dev/cd0 -r -T -J -joliet-long -v 9-CURRENT-distfiles
> 
> and in ./9-CURRENT-distfiles are some 1500 distfiles (a typical content of
> /usr/ports/distfiles).
> 
> I can't mount this DVD+RW on a 9.0-CURRENT #0 r197801, it always gives:
> 
>     Oct 25 16:42:56 LaHabana kernel: g_vfs_done():acd0[READ(offset=32768, length=2048)]error = 5
> 
> It mounts fine on the burning system itself and on some older 7.0-REL system.
> Any ideas? Thx

-RW media needs more read sensitivity that -R media.
Maybe its just chance if your -rw drive is on 7 & can read what it writes, & 
maybe you have a less sensitive drive -R on your current box ?
If theyre external USB, easy to swop & try.

PS Might possibly even be power, affecting digital levels,
(I once had an old box would crash on CD access"
the spin up surge pulled power too low for CPU :-)

Cheers,
Julian
-- 
Julian Stacey: BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com
Mail plain text not quoted-printable, HTML or Base64:  http://asciiribbon.org



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