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Description of problem:

If you reboot a guest which locks the tray of optical drive the optical drive stay locked.

How reproducible: 100%

Steps to Reproduce:
1. Boot a guest with media inserted in optical drive (for example fedora 17)
2. The media is auto-mounted and the optical drive is locked
3. Reboot the guest.
4. Before kernel is loaded (in GRUB time) the optical drive is locked
  
Actual results:
Before kernel is loaded the optical drive is locked.

Expected results:
Optical drive should not be locked.

This bug can be verified on latest version,please see  Bug 886878 atapi: tray statuses (locked and open) are not reset on boot/reboot of guest(comment8)

...
Verify this bug as follow version:
HOst:
# uname -r
2.6.32-392.el6.x86_64
# rpm -q qemu-kvm
qemu-kvm-0.12.1.2-2.376.el6.x86_64

Guest:
2.6.32-358.el6.x86_64

.....
Addtional info:
...
3)Also tried use local cdrom with scsi-cd,work well



So this bug fixed.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2013-1553.html