Bug 2229148

Summary:	[cnv-4.13] isolateEmulatorThread should not block live migration
Product:	Container Native Virtualization (CNV)	Reporter:	Kedar Bidarkar <kbidarka>
Component:	Virtualization	Assignee:	sgott
Status:	CLOSED ERRATA	QA Contact:	Kedar Bidarkar <kbidarka>
Severity:	high	Docs Contact:
Priority:	high
Version:	4.13.0	CC:	zpeng
Target Milestone:	---
Target Release:	4.13.3
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-08-16 14:10:01 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:

Description Kedar Bidarkar 2023-08-04 12:40:03 UTC

This bug was initially created as a copy of Bug #2198976

I am copying this bug because: 



Description of problem:

Pinning of emulator threads does not restrict live migration of a VM

Version-Release number of selected component (if applicable):
4.12.2

How reproducible:
Always

Steps to Reproduce:
1. Set a VM with isolateEmulatorThread

$ oc get vm fedora -o yaml | yq '.spec.template.spec.domain.cpu'

dedicatedCpuPlacement: true
isolateEmulatorThread: true

2. VM is not migratable because "VMI uses dedicated CPUs and emulator thread isolation"

Additional info:
* PR already exists by Marcelo: https://github.com/kubevirt/kubevirt/pull/9722/commits/feb0203f556b45a7fdcc58af4a9b5d6dde48c877

Comment 1 Kedar Bidarkar 2023-08-04 12:49:29 UTC

Fix is in, https://github.com/kubevirt/kubevirt/pull/9941

Comment 2 zhe peng 2023-08-07 04:51:53 UTC

verify with build: CNV-v4.13.3.rhel9-160

step:

1: create vm with:
...
       domain:
          cpu:
            dedicatedCpuPlacement: true
            isolateEmulatorThread: true
...

2: start vm and do live migration

$ oc get virtualmachineinstancemigrations.kubevirt.io 
NAME                        PHASE       VMI
vm-fedora-migration-jwyya   Succeeded   vm-fedora

migration succeeded

move to verified.

Comment 10 errata-xmlrpc 2023-08-16 14:10:01 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Important: OpenShift Virtualization 4.13.3 Images security and bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:4664