Bug 757630

Summary:	Max supporting up to more than 4G for 32 bit guests
Product:	Red Hat Enterprise Linux 6	Reporter:	juzhang <juzhang>
Component:	Documentation	Assignee:	Tahlia Richardson <trichard>
Status:	CLOSED CURRENTRELEASE	QA Contact:	ecs-bugs
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.2	CC:	jskeoch, michen, rhod, sgordon
Target Milestone:	rc	Keywords:	Documentation
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-02-25 06:19:38 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:	800648, 813004, 813368
Bug Blocks:
Deadline:	2012-01-06

Description juzhang 2011-11-28 06:26:52 UTC

Description of problem:
In
http://documentation-stage.bne.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6-Beta/html/Hypervisor_Deployment_Guide/References_RHEL_6_RHEVH_Support_Limits_Guests.html

2.2. Guest Requirements and Support Limits
RAM Part

Actual results:
RAM Part
A maximum of 4 GB of virtualized RAM per 32 bit guest is supported. Note that not all 32 bit operating systems are able to register an entire 4 GB of RAM.

Expected results:
About Max support virtualized RAM size per 32 bit guest is more than 4G,it's not static,it's depend on guest itself.for example,about rhel6.2-32 bit guest,I tried install it with 8G using rhevm-3.0.0_0001-40.el6.x86_64.it works.


Additional info:

Comment 1 juzhang 2011-11-28 06:59:10 UTC

32-bit guest without Physical Address Extension (PAE) support will just show <= 4
GB. with Physical Address Extension (PAE) support will show more than 4G.This
is a hardware limitation, and not a KVM or rhel-m limitation. Max support
virtualized RAM size per 32 bit guest should depend on guest itself

Comment 12 Ronen Hod 2012-06-06 12:15:27 UTC

Laura,
Yes it is accurate. Thanks, Ronen.

Comment 17 Tahlia Richardson 2013-02-25 06:19:38 UTC

Closed - this fix is included in the RHEL 6.4 release.