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Bug 1724617

Summary: RFE: add support for cgroups v2 cpuset controller
Product: Red Hat Enterprise Linux 8 Reporter: Pavel Hrdina <phrdina>
Component: systemdAssignee: Michal Sekletar <msekleta>
Status: CLOSED ERRATA QA Contact: Frantisek Sumsal <fsumsal>
Severity: high Docs Contact:
Priority: unspecified    
Version: 8.1CC: jen, jsuchane, mrichter, msekleta, systemd-maint-list, tborcin, yisun
Target Milestone: rcKeywords: FutureFeature
Target Release: 8.0Flags: msekleta: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-04-28 16:44:50 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:
Bug Depends On:    
Bug Blocks: 1513930, 1689297    

Description Pavel Hrdina 2019-06-27 12:17:52 UTC 
With systemd and cgroups v2 and delegation policy [1] applications should
not enable any controllers that are not supported by systemd.

The cpuset controller is used by libvirt for cpu and memory pinning especially
for large NUMA hosts.  Without cpuset controller management applications like
oVirt cannot pin VMs to specific NUMA nodes.  This will cause a regression in
functionality compared to cgroups v1 where applications can handle controllers
that are not supported by systemd.
Comment 1 Pavel Hrdina 2019-06-27 12:59:33 UTC 
Llink to the delegation document:

[1] <https://github.com/systemd/systemd/blob/master/docs/CGROUP_DELEGATION.md>
Comment 10 Lukáš Nykrýn 2020-02-21 10:21:58 UTC 
fix merged to github master branch -> https://github.com/systemd-rhel/rhel-8/pull/57
Comment 20 errata-xmlrpc 2020-04-28 16:44:50 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.

https://access.redhat.com/errata/RHSA-2020:1794