Bug 1140960
| Summary: | present memballoon statistic period in live xml | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jincheng Miao <jmiao> |
| Component: | libvirt | Assignee: | Libvirt Maintainers <libvirt-maint> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.1 | CC: | dyuan, eskultet, honzhang, lcheng, mzhan, rbalakri |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-1.2.13-1.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-11-19 05:46:49 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Fixed upstream:
commit e3a7b8740fb4be15d9ba4f49f65bb9ee743730a0
Author: Erik Skultety <eskultet>
Date: Thu Oct 2 14:48:02 2014 +0200
qemu: Fix updating balloon period in live XML
Up until now, we set memballoon period in monitor successfully, however
we did not update domain definition structure, thus dumpxml was omitting
period attribute in memballoon element
v1.2.9-12-ge3a7b87
Verify the issue as follows. The result is expected. Move to VERIFIED.
[root@localhost ~]# rpm -q libvirt
libvirt-1.2.14-1.el7.x86_64
[root@localhost ~]# virsh start 7
Domain 7 started
[root@localhost ~]# virsh dumpxml 7 | grep -1 memballoon
</video>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</memballoon>
</devices>
[root@localhost ~]# virsh dommemstat 7
actual 1048576
rss 319908
[root@localhost ~]# virsh dommemstat 7 --period 2
[root@localhost ~]# virsh dommemstat 7
actual 1048576
swap_in 0
swap_out 0
major_fault 567
minor_fault 2881200
unused 805660
available 1017212
rss 319908
[root@localhost ~]# virsh dumpxml 7 | grep memballoon -A10
<memballoon model='virtio'>
<stats period='2'/>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</memballoon>
</devices>
...
[root@localhost ~]# virsh dommemstat 7 --period 0
[root@localhost ~]# virsh dumpxml 7 | grep memballoon -A10
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</memballoon>
</devices>
...
[root@localhost ~]# virsh dommemstat 7
actual 1048576
swap_in 0
swap_out 0
major_fault 567
minor_fault 2888956
unused 805660
available 1017212
rss 319908
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. https://rhn.redhat.com/errata/RHBA-2015-2202.html |
Description of problem: Balloon memory statistic period could be set by dommemstat. But after set, this period value is not present in live xml Version-Release number of selected component (if applicable): libvirt-1.2.8-1.el7.x86_64 qemu-kvm-rhev-2.1.0-3.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. start a guest with virtio memballoon: # virsh start r7a # virsh dumpxml r7a | grep -1 memballoon </video> <memballoon model='virtio'> <alias name='balloon0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </memballoon> 2. set period by dommemstat # virsh dommemstat r7a actual 1048576 rss 182036 # virsh dommemstat r7a --period 2 # virsh dommemstat r7a actual 1048576 swap_in 0 swap_out 0 major_fault 387 minor_fault 708324 unused 831132 available 1017984 rss 276916 3. check the live xml, no period # virsh dumpxml r7a | grep -1 memb </video> <memballoon model='virtio'> <alias name='balloon0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </memballoon> </devices> Expect result: in step3: show < stats> element.