Bug 711546 – RHEL6.1 x86_64 HVM guest crashes on AMD host when guest memory size is larger than 8G

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Bug 711546 - RHEL6.1 x86_64 HVM guest crashes on AMD host when guest memory size is larger than 8G

Summary:	RHEL6.1 x86_64 HVM guest crashes on AMD host when guest memory size is larger...

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	6.1
Hardware:	Unspecified Unspecified

Priority	urgent Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Frantisek Hrbata
QA Contact:	Virtualization Bugs
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	703055
Blocks:
	Show dependency tree / graph

Reported:	2011-06-07 14:34 EDT by Benjamin Kahn
Modified:	2011-07-12 17:13 EDT (History)
CC List:	11 users (show)

See Also:
Fixed In Version:	kernel-2.6.32-131.6.1.el6
Doc Type:	Bug Fix
Doc Text:	Prior to this update, Red Hat Enterprise Linux Xen (up to version 5.6) did not hide 1 GB pages and RDTSCP (enumeration features of CPUID), causing guest soft lock ups on AMD hosts when the guest's memory was greater than 8 GB. With this update, a Red Hat Enterprise Linux 6 HVM (Hardware Virtual Machine) guest is able to run on Red Hat Enterprise Linux Xen 5.6 and lower.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2011-07-12 17:13:03 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:0928	normal	SHIPPED_LIVE	Moderate: kernel security and bug fix update	2011-07-12 17:11:55 EDT

Groups: None (edit)

Description Benjamin Kahn 2011-06-07 14:34:51 EDT

This bug has been copied from bug #703055 and has been proposed
to be backported to 6.1 z-stream (EUS).

Comment 6 Jinxin Zheng 2011-06-28 00:27:31 EDT

Reproduced on kernel-2.6.32-131.4.1.el6: guest crashes with 16G.

Verified on kernel-2.6.32-131.6.1.el6. Tested 8G, 16G, 32G. All passed.

Comment 7 Martin Prpič 2011-07-12 07:36:33 EDT

    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:
Prior to this update, Red Hat Enterprise Linux Xen (up to version 5.6) did not hide 1 GB pages and RDTSCP (enumeration features of CPUID), causing guest soft lock ups on AMD hosts when the guest's memory was greater than 8 GB. With this update, a Red Hat Enterprise Linux 6 HVM (Hardware Virtual Machine) guest is able to run on Red Hat Enterprise Linux Xen 5.6 and lower.

Comment 8 errata-xmlrpc 2011-07-12 17:13:03 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-2011-0928.html

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