Bug 616660

Summary: mrg buffers: migration breaks between systems with/without vhost
Product: Red Hat Enterprise Linux 6 Reporter: Michael S. Tsirkin <mst>
Component: kernelAssignee: jason wang <jasowang>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.0CC: 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: ---
Bug Depends On: 616659    
Bug Blocks: 580951    

Comment 4 RHEL Product and 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