linux-kernel - Re: "attempt to access beyond end of device" on DVD

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Date:	Wed, 12 Dec 2012 02:03:48 +0100
From:	Bruno Prémont <bonbons@...ux-vserver.org>
To:	Jacek Poplawski <jacekpoplawski@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: "attempt to access beyond end of device" on DVD

On Wed, 12 December 2012 Jacek Poplawski wrote:
> On 12/12/12, Bruno Prémont wrote:
> > When it happens, does ejecting and re-inserting the CDs/DVDs also fix the
> > problem or is a full reboot mandatory?
> 
> The re-inserting doesn't fix the problem.
> Even worse. When it starts - each next DVD is also affected (until reboot).

Did you check if unbinding drivers or unloading their modules has the
same effect as rebooting? That might help narrowing the area of code to
look at.

Does it also affect loop-mounted ISOs or is it specific to the CD/DVD
drive?
As a related test, does it affect CD/DVD drives connected through a
different interface? (USB storage, ATA over Ethernet, iSCSI, ...)

While at it, please tell us how your CD/DVD drive is connected and which
controller it's connected to (relevant dmesg parts).

Bruno
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