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Bug 639534 - #virsh dommemstat does not return any output
Summary: #virsh dommemstat does not return any output
Keywords:
Status: CLOSED DUPLICATE of bug 626958
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm
Version: 6.0
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: 6.1
Assignee: Luiz Capitulino
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 626958
Blocks: 645519 748534 756082
TreeView+ depends on / blocked
 
Reported: 2010-10-02 07:54 UTC by Humble Chirammal
Modified: 2018-11-28 21:56 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-12-09 18:31:02 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 988448 1 None None None 2021-01-20 06:05:38 UTC

Internal Links: 988448

Description Humble Chirammal 2010-10-02 07:54:42 UTC 
Description of problem:

#virsh dommemstat does not give the memory statitics of a running domain. 


--snip-- from #man virsh


       dommemstat domain
           Get memory stats for a running domain.



--/snip--

Version-Release number of selected component (if applicable):

libvirt-client-0.8.1-13.el6.x86_64


Steps to Reproduce:

[root@dhcp210-84 ~]# virsh list
 Id Name                 State
----------------------------------
  3 rhel6                running

[root@dhcp210-84 ~]# virsh dommemstat rhel6

[root@dhcp210-84 ~]# echo $?
0
[root@dhcp210-84 ~]# 

The command exited successfully, how-ever there is no output.
  
Actual results:

Virsh command failed to return memory statistics.

Expected results:

It should return memory statistics of the specified domain

--Humble
Comment 1 RHEL Program Management 2010-10-02 08:08:17 UTC 
Thank you for your bug report. This issue was evaluated for inclusion
in the current release of Red Hat Enterprise Linux. Unfortunately, we
are unable to address this request in the current release. Because we
are in the final stage of Red Hat Enterprise Linux 6 development, only
significant, release-blocking issues involving serious regressions and
data corruption can be considered.

If you believe this issue meets the release blocking criteria as
defined and communicated to you by your Red Hat Support representative,
please ask your representative to file this issue as a blocker for the
current release. Otherwise, ask that it be evaluated for inclusion in
the next minor release of Red Hat Enterprise Linux.
Comment 2 Osier Yang 2010-12-08 08:46:15 UTC 
This is caused by qemu disabled extended memory stats by commit:

commit 07b0403dfc2b2ac179ae5b48105096cc2d03375a
Author: Eduardo Habkost <ehabkost>
Date:   Tue Sep 14 13:43:39 2010 -0300

    disable guest-provided stats on "info balloon" command
    
    The addition of memory stats reporting to the virtio balloon causes
    the 'info balloon' command to become asynchronous.  This is a regression
    because in some cases it can hang the user monitor.
    
    This is an alternative to Adam Litke's patch. Adam's patch disabled the
    corresponding (guest-visible) virtio feature bit, causing issues for migration.
    Original discussion is available at:
    http://marc.info/?l=qemu-devel&m=128448124328314&w=2
    
    Signed-off-by: Eduardo Habkost <ehabkost>
    Acked-by: Adam Litke <agl.com>
Comment 13 Luiz Capitulino 2011-12-09 18:31:02 UTC 

*** This bug has been marked as a duplicate of bug 626958 ***
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