Bug 642679 – kernel BUG at mm/huge_memory.c:1279! [rhel-6.0.z]

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Bug 642679 - kernel BUG at mm/huge_memory.c:1279! [rhel-6.0.z]

Summary:	kernel BUG at mm/huge_memory.c:1279! [rhel-6.0.z]

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	urgent Severity urgent
Target Milestone:	rc
Target Release:	---
Assigned To:	Frantisek Hrbata
QA Contact:	Zhouping Liu
Docs Contact:

URL:
Whiteboard:
Keywords:	Reopened, ZStream

Duplicates:	683776 (view as bug list)
Depends On:	622327
Blocks:
	Show dependency tree / graph

Reported:	2010-10-13 10:50 EDT by RHEL Product and Program Management
Modified:	2014-01-12 19:01 EST (History)
CC List:	14 users (show)

See Also:
Fixed In Version:	kernel-2.6.32-71.5.1.el6
Doc Type:	Bug Fix
Doc Text:	Previously, an operation such as madvise(MADV_MERGEABLE) may have split VMAs (Virtual Memory Area) without checking if any huge page had to be split into regular pages, leading to huge pages to be still mapped in VMA ranges that would not be large enough to fit huge pages. With this update, huge pages are checked whether they have been split when any VMA is being truncated.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-11-10 14:11:30 EST
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-2010:0842	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2010-11-22 14:34:20 EST

Groups: None (edit)

Description RHEL Product and Program Management 2010-10-13 10:50:00 EDT

This bug has been copied from bug #622327 and has been proposed
to be backported to 6.0 z-stream (EUS).

Comment 2 Frantisek Hrbata 2010-10-20 02:22:39 EDT

in 2.6.32-71.5.1.el6

Comment 7 errata-xmlrpc 2010-11-10 14:11:30 EST

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-2010-0842.html

Comment 8 Martin Prpič 2010-11-11 07:04:46 EST

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Previously, an operation such as madvise(MADV_MERGEABLE) may have split VMAs (Virtual Memory Area) without checking if any huge page had to be split into regular pages, leading to huge pages to be still mapped in VMA ranges that would not be large enough to fit huge pages. With this update, huge pages are checked whether they have been split when any VMA is being truncated.

Comment 9 Suzanne Forsberg 2011-04-20 14:21:08 EDT

*** Bug 683776 has been marked as a duplicate of this bug. ***

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