Bug 616660

Summary:	mrg buffers: migration breaks between systems with/without vhost
Product:	Red Hat Enterprise Linux 6	Reporter:	Michael S. Tsirkin <mst>
Component:	kernel	Assignee:	jason wang <jasowang>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.0	CC:	arozansk, bcao, ddumas, gcosta, lihuang, michen, mkenneth, tburke, virt-maint
Target Milestone:	rc
Target Release:	6.1
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel-2.6.32-94.el6	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	616659	Environment:
Last Closed:	2011-05-23 20:42:59 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:	616659
Bug Blocks:	580951

Comment 4 RHEL Program Management 2010-10-05 01:56:03 UTC

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 8 Aristeu Rozanski 2011-01-07 12:41:38 UTC

Patch(es) available on kernel-2.6.32-94.el6

Comment 11 Mike Cao 2011-01-13 09:37:30 UTC

note :should   migration from vhost off to vhost on
reproduced on
# uname -r
2.6.32-92.el6.x86_64
# rpm -q qemu-kvm
qemu-kvm-0.12.1.2-2.90.el6.x86_64

Actual Result:
Features 0x100fffe3 unsupported. Allowed features: 0x511f7fe3
load of migration failed


Verified on 
# uname -r
2.6.32-94.el6.x86_64
# rpm -q qemu-kvm
qemu-kvm-0.12.1.2-2.129.el6.x86_64

Actual result:
After migration ,guest works well.

Base on above ,this issue has been fixed already.

Comment 13 Miya Chen 2011-02-23 09:37:49 UTC

Change status to verified based on comment#11

Comment 14 errata-xmlrpc 2011-05-23 20:42:59 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