Re: [Qemu-devel] block bug: tray status is not updated (and/or guest ignores it)

[Amit Shah]

On (Fri) 27 May 2011 [17:04:30], Amit Shah wrote:
> On (Fri) 27 May 2011 [17:01:35], Amit Shah wrote:
> > On (Thu) 26 May 2011 [15:29:29], Luiz Capitulino wrote:
> > > 
> > > I'm testing with qemu.git (HEAD aa29141d84d), procedure:
> > > 
> > > 1. Start a VM with:
> > > 
> > >  # qemu -hda disks/test.img -enable-kvm -m 1G -cdrom 
> > > Fedora-14-x86_64-DVD.iso
> > > 
> > > 2. Then inside the guest run:
> > > 
> > >  # eject /dev/sr0 && mount /dev/sr0 /mnt
> > > 
> > > Results:
> > > 
> > >  Actual: The cdrom is successfully mounted
> > >  Expected: The cdrom is not mounted (mount fails, medium not found)
> > 
> > Really?  That's what you expect? :-)
> > 
> > Where will the medium go?
> > 
> > What happens is mount auto-closes the tray and mounts whatever is
> > there, which is the image you provided.  Works as expected, IMO.

Confirmed, that's what happens.

What's weird though is 'eject' in the monitor makes the cdrom go away
-- a subsequent mount in the guest results in a no medium error.  I
thought we had solved that, Markus?

By not doing a bdrv_close() in the do_eject()->eject_device() call
path this starts working as expected.

                Amit