Re: [Xen-devel] What opens /dev/cdrom when guest is started

[Miroslav Rezanina <mrezanin@xxxxxxxxxx>]

> From: "Andrew Lyon" <andrew.lyon@xxxxxxxxx>
> To: "Miroslav Rezanina" <mrezanin@xxxxxxxxxx>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Sent: Wednesday, August 26, 2009 4:31:12 PM GMT +01:00 Amsterdam / Berlin / 
> Bern / Rome / Stockholm / Vienna
> Subject: Re: [Xen-devel] What opens /dev/cdrom when guest is started
>
> On Wed, Aug 26, 2009 at 2:32 PM, Miroslav
> Rezanina<mrezanin@xxxxxxxxxx> wrote:
> > Hi,
> > when I start HVM guest that has assigned physical cdrom device
> (/dev/cdrom), I see there are two handles open. One is open by qemu-dm
> and is used by guest. However, what holds second handle? This is hold
> for whole time guest is running.
> 
> Try losetup -a , it may have been setup as a loop device for use with
> stubdom, that certainly happens with iso images
> 
> Andy
Hi Andy,

thanks for answer. Unfortunately this is not my case. There is only guest 
image mapped to loop device. 

Regards,
Mirek

> 
> >
> > Does anybody knows what opens /dev/cdrom during guest creation?
> >
> > Regards,
> > Miroslav Rezanina
> >
> >
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> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
> >

-- 
Miroslav Rezanina
Software Engineer - Virtualization Team - XEN kernel


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