Eject CD ROM medium fails with 'Tray of device is not open'

[liang chaojun <jesonliang040705@xxxxxxxxxxx>]

Hi Guys,

I have hit an issue on testing against our testbed, It's failed to eject cdrom media after reboot from installed the guest OS.

The reproduce step:

1.  Attach a block device with a ISO media and start install VM from ISO.
2.  <disk type='block' device='cdrom'>
         <driver name='qemu' type='raw'/>
         <source dev='/dev/disk/by-id/pbdx-vol-cfe60dca-c271-491b-be3c-11fa8d7625a4' index='6'/>
         <backingStore/>
         <target dev='hda' bus='ide' tray='open'/>
         <readonly/>
         <alias name='ide0-0-0'/>
         <address type='drive' controller='0' bus='0' target='0' unit='0'/>
       </disk>
   
3. After installed the OS and reboot from system disk successful.
4. Then I want to eject CDROM through update device with the xml like below or using virsh tool 'virsh change-media iso_test hda --eject'
5. All those will failed at "internal error: unable to execute QEMU command 'blockdev-remove-medium': Tray of device 'ide0-0-0' is not open"
   

<disk type='block' device='cdrom'>

   <driver name='qemu' type='raw'/>

      <backingStore/>

      <target dev='hda' bus='ide' tray='open'/>

      <readonly/>

      <alias name='ide0-0-0'/>

      <address type='drive' controller='0' bus='0' target='0' unit='0'/>

</disk>

block info looks like below:

virsh qemu-monitor-command iso_test --hmp info block

setlocale: No such file or directory

libvirt-6-format: /dev/disk/by-id/pbdx-vol-cfe60dca-c271-491b-be3c-11fa8d7625a4 (raw, read-only)

    Attached to:      ide0-0-0

    Removable device: locked, tray closed

    Cache mode:       writeback

Reproduce envrionment:

     Operating system: rhat8.4

     Architecture:x86

     kernel version:4.18.0-305

     libvirt version:v7.9.0(private build)

     Hypervisor and version:QEMU 5.1.0(private build)

  Is there any workaround?  Any comments are appreciated.

 

  Thanks!