Bug 1495213 - Code for dynamic allocation sums memory of VMs without hugepages
Summary: Code for dynamic allocation sums memory of VMs without hugepages
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: vdsm
Classification: oVirt
Component: Core
Version: 4.20.4
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: ovirt-4.2.0
: ---
Assignee: Dan Kenigsberg
QA Contact: Artyom
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-09-25 14:03 UTC by Artyom
Modified: 2017-12-20 11:35 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-12-20 11:35:26 UTC
oVirt Team: Virt
Embargoed:
rule-engine: ovirt-4.2+
rule-engine: blocker+

Attachments (Terms of Use)
vdsm log (617.04 KB, text/plain)
2017-09-25 14:03 UTC, Artyom 		no flags Details
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Links
System ID Private Priority Status Summary Last Updated
oVirt gerrit 82186 0 master MERGED hugepages: nr_hugepages and hugepagesz = 0 if hugepages are disabled 2017-11-29 15:57:23 UTC

Description Artyom 2017-09-25 14:03:45 UTC 
Created attachment 1330585 [details]
vdsm log

Description of problem:
Code for dynamic allocation sums memory of VMs without hugepages

Version-Release number of selected component (if applicable):
vdsm-4.20.3-88.git6102334.el7.centos.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Configure hugepages on host via "echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages"
HugePages_Total:    1024
HugePages_Free:     1024
2. Configure two VM's with 1 GB each and with hugepages custom parameters 2048
3. Start VM's

Actual results:
The VDSM allocate additional hugepages
HugePages_Total:    2048
HugePages_Free:     1024

Expected results:
The VDSm use already ready hugepages

Additional info:
Comment 1 Dan Kenigsberg 2017-11-29 15:17:03 UTC 
Asking for blocker as Francesco would like this fixed for 4.2.0.
Comment 2 Artyom 2017-12-11 13:21:01 UTC 
Verified on vdsm-4.20.9-1.el7ev.x86_64
Comment 3 Sandro Bonazzola 2017-12-20 11:35:26 UTC 
This bugzilla is included in oVirt 4.2.0 release, published on Dec 20th 2017.

Since the problem described in this bug report should be
resolved in oVirt 4.2.0 release, published on Dec 20th 2017, it has been closed with a resolution of CURRENT RELEASE.

If the solution does not work for you, please open a new bug report.
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