Bug 658482

Summary:	block IO controller: Allow creation of cgroup hierarchies
Product:	Red Hat Enterprise Linux 6	Reporter:	Vivek Goyal <vgoyal>
Component:	kernel	Assignee:	Vivek Goyal <vgoyal>
Status:	CLOSED ERRATA	QA Contact:	Mike Gahagan <mgahagan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.1	CC:	berrange, mjenner, mzywusko
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel-2.6.32-112.el6	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-05-23 20:29:57 UTC	Type:	---
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:	632492

Description Vivek Goyal 2010-11-30 14:13:48 UTC

Description of problem:

Currently block IO controller supports flat setup and does not allow creation of cgroup hierarchies. It does not work well with libvirt which creates vm groups few levels below root.

Allow creation of cgroup hierarchy but internally it will treated as flat setup
and all groups will be at same level.

Work is in progress and later we can introduce true hierarchy support.
Version-Release number of selected component (if applicable):

Fixing this issue will remove one of the obstacles in the way of libvirt and block IO controller integration.

How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

Comment 3 RHEL Program Management 2011-01-07 03:49:24 UTC

This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unfortunately unable to
address this request at this time. Red Hat invites you to
ask your support representative to propose this request, if
appropriate and relevant, in the next release of Red Hat
Enterprise Linux. If you would like it considered as an
exception in the current release, please ask your support
representative.

Comment 4 Suzanne Logcher 2011-01-07 16:13:53 UTC

This request was erroneously denied for the current release of Red Hat
Enterprise Linux.  The error has been fixed and this request has been
re-proposed for the current release.

Comment 8 Aristeu Rozanski 2011-02-03 15:44:55 UTC

Patch(es) available on kernel-2.6.32-112.el6

Comment 13 errata-xmlrpc 2011-05-23 20:29:57 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2011-0542.html