Bug 1270715
| Summary: | Wrong display of numatune result if guest use numad advise | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Luyao Huang <lhuang> |
| Component: | libvirt | Assignee: | John Ferlan <jferlan> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.2 | CC: | dyuan, jferlan, lmiksik, mzhan, rbalakri |
| Target Milestone: | rc | Keywords: | Regression |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-1.3.1-1.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-11-03 18:25:59 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: | |||
Send a patch to upstream: https://www.redhat.com/archives/libvir-list/2015-October/msg00328.html Pushed upstream, commit id '4eac55238' $ git describe 4eac55238 v1.2.20-148-g4eac552 $ Verify this bug with libvirt-2.0.0-4.el7.x86_64:
1. check numa struct:
# numactl --har
available: 4 nodes (0-3)
node 0 cpus: 0 2 4 6 8 10
node 0 size: 10205 MB
node 0 free: 6198 MB
node 1 cpus: 12 14 16 18 20 22
node 1 size: 8192 MB
node 1 free: 5519 MB
node 2 cpus: 1 3 5 7 9 11
node 2 size: 6144 MB
node 2 free: 3818 MB
node 3 cpus: 13 15 17 19 21 23
node 3 size: 8175 MB
node 3 free: 5799 MB
node distances:
node 0 1 2 3
0: 10 20 20 20
1: 20 10 20 20
2: 20 20 10 20
3: 20 20 20 10
2. prepare a guest which memtune placement is auto:
# virsh dumpxml r7
<domain type='kvm'>
<name>r7</name>
<uuid>67c7a123-5415-4136-af62-a2ee098ba6cd</uuid>
<maxMemory slots='16' unit='KiB'>15243264</maxMemory>
<memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='auto' current='6'>10</vcpu>
<numatune>
<memory mode='strict' placement='auto'/>
</numatune>
3. start guest:
# virsh start r7
Domain r7 started
4. check numatune info:
# virsh numatune r7
numa_mode : strict
numa_nodeset : 0-1
5. restart libvirtd and recheck:
# virsh numatune r7
numa_mode : strict
numa_nodeset : 0-1
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/RHSA-2016-2577.html |
Description of problem: Wrong display of numatune result if guest use numad advise Version-Release number of selected component (if applicable): libvirt-1.2.17-13.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. prepare a running guest which memtune placement is auto: # virsh dumpxml rhel7.0-rhel |grep -1 numatune <vcpu placement='auto' current='2'>4</vcpu> <numatune> <memory mode='strict' placement='auto'/> </numatune> <resource> 2. use numatune to check nodeset: # virsh numatune rhel7.0-rhel --live numa_mode : strict numa_nodeset : 3. Actual results: libvirt do not print the current nodeset which guest running Expected results: # virsh numatune rhel7.0-rhel --live numa_mode : strict numa_nodeset : 0 Additional info: test with 1.2.15-2 and find cannot reproduce this issue, so i think this maybe a regression issue: # virsh dumpxml rhel7.0-rhel |grep -1 numatune <vcpu placement='auto' current='2'>4</vcpu> <numatune> <memory mode='strict' placement='auto'/> </numatune> <resource> # virsh numatune rhel7.0-rhel --live numa_mode : strict numa_nodeset : 0