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Bug 833674 - Deactivate memory balloon with type of none get wrong error info
Summary: Deactivate memory balloon with type of none get wrong error info
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: libvirt
Version: 6.3
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Osier Yang
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-06-20 06:38 UTC by EricLee
Modified: 2013-02-21 07:17 UTC (History)
9 users (show)

Fixed In Version: libvirt-0.9.13-3.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-02-21 07:17:57 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:0276 0 normal SHIPPED_LIVE Moderate: libvirt security, bug fix, and enhancement update 2013-02-20 21:18:26 UTC

Description EricLee 2012-06-20 06:38:50 UTC 
Description
Deactivate memory balloon with type of none get wrong error info

Version
qemu-kvm-rhev-0.12.1.2-2.295.el6.x86_64
kernel-2.6.32-279.el6.x86_64
libvirt-0.9.10-21.el6_3.1.x86_64

How reproducible:
100%

Steps to Reproduce
Setup:
1. Modify the guest xml to deactivate memory balloon, Change memballoon model value as none.

    ...
    <memballoon model='none'>
    </memballoon>
    ...

2. # virsh start test
Domain test started

3. # virsh setmem test 524288
error: Requested operation is not valid: cannot set memory of an active domain
(this error info let we think we can set memory of an inactive domain)

But
4. # virsh destroy test
Domain test destroyed

5. # virsh setmem test 524288
error: Requested operation is not valid: domain is not running

Actual results：
As steps.

Expected results:
Give right error info in cmd line as like:
error: Requested operation is not valid: cannot set memory for memballoon is not active.

Additional info:
when guest running with  <memballoon model='virtio'>, setmem is working well.

# virsh setmem test 524288

# virsh dominfo mig
Id:             25
Name:           test
UUID:           74b67915-0115-fc45-25c2-d6762ed49cdd
OS Type:        hvm
State:          running
CPU(s):         4
CPU time:       22.4s
Max memory:     1048576 kB
Used memory:    524288 kB
Persistent:     yes
Autostart:      disable
Managed save:   no
Security model: selinux
Security DOI:   0
Security label: system_u:system_r:svirt_t:s0:c720,c1022 (enforcing)
Comment 2 Osier Yang 2012-06-25 14:03:02 UTC 
968b6c60 in upstream. move to POST.
Comment 4 zhpeng 2012-07-24 05:24:19 UTC 
Test with libvirt-0.9.13-3.el6.x86_64:

# virsh dumpxml ccc
    ...
    <memballoon model='none'>
    </memballoon>
    ...

# virsh start ccc
Domain ccc started

# virsh setmem ccc 524288
error: Requested operation is not valid: Unable to change memory of active domain without the balloon device and guest OS balloon driver

# virsh destroy ccc
Domain ccc destroyed

# virsh setmem ccc 524288
error: Requested operation is not valid: domain is not running


These results are expect, so this is verified.
Comment 5 errata-xmlrpc 2013-02-21 07:17:57 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-2013-0276.html
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