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


  • To: Miroslav Rezanina <mrezanin@xxxxxxxxxx>
  • From: Andrew Lyon <andrew.lyon@xxxxxxxxx>
  • Date: Wed, 26 Aug 2009 15:31:12 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 26 Aug 2009 07:32:45 -0700
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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

>
> Does anybody knows what opens /dev/cdrom during guest creation?
>
> Regards,
> Miroslav Rezanina
>
>
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