linux-kernel - Re: CD tray closes spontaneously after opening it

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Message-ID: <9ea470500810010702t5ff5e50di3c0182d0641c3dd5@mail.gmail.com>
Date:	Wed, 1 Oct 2008 16:02:02 +0200
From:	"Boris Petkov" <petkovbb@...glemail.com>
To:	"Frans Pop" <elendil@...net.nl>
Cc:	"Kay Sievers" <kay.sievers@...y.org>,
	"Tony Vroon" <tony@...on.org>, linux-kernel@...r.kernel.org,
	"Tejun Heo" <tj@...nel.org>, "Jens Axboe" <jens.axboe@...cle.com>
Subject: Re: CD tray closes spontaneously after opening it

Hi,

On Wed, Oct 1, 2008 at 3:53 PM, Frans Pop <elendil@...net.nl> wrote:
> On Tuesday 30 September 2008, Kay Sievers wrote:
>> >> Does this also happen when you set:
>> >>   /proc/sys/dev/cdrom/autoclose
>> >> to 0?
>> >
>> > I'll set that on boot using /etc/sysctl.conf and will report if I can
>> > still reproduce with that setting. I've checked that the "normal"
>> > value is 1.
>>
>> That will prevent the closing, when something tries to open the device
>> in blocking mode. If that solves the issue, you should start looking
>> which process tries to access your drive.
>
> Right. It happens with autoclose=0 too.
>
> Any suggestions for the next step? Maybe add some instrumentation in the
> cdrom or ide-cd drivers?

I have a debugging infrastructure ready in ide-cd which is in Bart's tree, you
could apply it ontop of current git, enable it and send dmesg so that we could
see exactly what is going on:

http://www.kernel.org/pub/linux/kernel/people/bart/pata-2.6/patches/

-- 
Regards/Gruss,
Boris
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