Bug 742469

Summary:	Drives can not be locked without media present
Product:	Red Hat Enterprise Linux 6	Reporter:	juzhang <juzhang>
Component:	qemu-kvm	Assignee:	Markus Armbruster <armbru>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.2	CC:	acathrow, chayang, michen, mkenneth, tburke, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	qemu-kvm-0.12.1.2-2.206.el6	Doc Type:	Bug Fix
Doc Text:	Cause: CD-ROM refused to let the guest lock an empty tray Consequence: Guest could not lock empty tray Fix: Permit locking regardless of media presence Result: Guest can lock empty tray	Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-12-06 16:04:41 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	742458, 748554

Description juzhang 2011-09-30 09:14:02 UTC

Description of problem:
Boot guest without media present
in guest.
# eject -i on /dev/sr0
(qemu) info block
.................
drive-ide0-1-0: type=cdrom removable=1 locked=0 [not inserted]

the locked is still as 0


Version-Release number of selected component (if applicable):
qemu-kvm-0.12.1.2-2.193.el6.x86_64
guest kernel
#uname -r
2.6.32-195.el6.x86_64


How reproducible:
100%

Steps to Reproduce:
1.boot guest without media present
-drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0
2.(qemu) info block
..................
drive-ide0-1-0: type=cdrom removable=1 locked=0 [not inserted]

3.In guest
 eject -i on /dev/sr0
CD-Drive may NOT be ejected with device button

4.(qemu) info block
..................
drive-ide0-1-0: type=cdrom removable=1 locked=0 [not inserted]

  
Actual results:
after step4,locked=0

Expected results:
locked=1

Additional info:

Comment 1 juzhang 2011-09-30 09:15:54 UTC

http://post-office.corp.redhat.com/archives/rhvirt-patches/2011-September/msg00677.html

According to our test results. 
with this patch fix this issue.add this issue into tracker bug(bz742458)

Comment 7 juzhang 2011-10-20 09:44:02 UTC

Verified with qemu-kvm-0.12.1.2-2.199.el6,the steps are as same as comment0.

Result
locked=1

Comment 11 Eduardo Habkost 2011-10-28 18:00:17 UTC

Moving to ON_QA because Errata Tool did not do it

Comment 13 Markus Armbruster 2011-11-18 10:03:57 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Cause: CD-ROM refused to let the guest lock an empty tray
Consequence: Guest could not lock empty tray
Fix: Permit locking regardless of media presence
Result: Guest can lock empty tray

Comment 14 errata-xmlrpc 2011-12-06 16:04:41 UTC

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-2011-1531.html