Bug 679025 – memcg: upstream backport of various race condition fixes

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Bug 679025 - memcg: upstream backport of various race condition fixes

Summary:	memcg: upstream backport of various race condition fixes

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	6.0
Hardware:	All Linux

Priority	unspecified Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Johannes Weiner
QA Contact:	Caspar Zhang
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2011-02-21 05:29 EST by Johannes Weiner
Modified:	2015-08-31 23:50 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	kernel-2.6.32-121.el6
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2011-05-19 08:43:42 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:0542	normal	SHIPPED_LIVE	Important: Red Hat Enterprise Linux 6.1 kernel security, bug fix and enhancement update	2011-05-19 07:58:07 EDT

Groups: None (edit)

Description Johannes Weiner 2011-02-21 05:29:04 EST

Memory control groups have various race conditions that have been fixed upstream in the following commits:

8725d54 memcg: fix race in file_mapped accounting
0c270f8 memcg: fix race in file_mapped accouting flag management
713735b memcg: correctly order reading PCG_USED and pc->mem_cgroup
52dbb90 memcg: fix race at move_parent around compound_order()

Comment 1 RHEL Product and Program Management 2011-03-01 16:39:57 EST

This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has 
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed 
products. This request is not yet committed for inclusion in an Update release.

Comment 2 Aristeu Rozanski 2011-03-10 12:57:45 EST

Patch(es) available on kernel-2.6.32-121.el6

Comment 7 errata-xmlrpc 2011-05-19 08:43:42 EDT

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

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