Bug 1821005

Summary:	[oVirt] disable tx checksum offload for workers
Product:	OpenShift Container Platform	Reporter:	Gal Zaidman <gzaidman>
Component:	Machine Config Operator	Assignee:	Gal Zaidman <gzaidman>
Status:	CLOSED ERRATA	QA Contact:	Michael Nguyen <mnguyen>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	4.4	CC:	michal.skrivanek, mnguyen, rgolan, smilner
Target Milestone:	---
Target Release:	4.5.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:	1820975
Clones:	1821798 (view as bug list)		Environment:
Last Closed:	2020-07-13 17:25:33 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:
Bug Blocks:	1820975

Description Gal Zaidman 2020-04-05 11:54:48 UTC

+++ This bug was initially created as a clone of Bug #1820975 +++

Description of problem:
We need to disable tx checksum offload on worker nodes due to BZ#1794714.
This is currenly a workaround and is tracked for removal on BZ#1820581.

How reproducible:
Run network tests on a ovirt cluster, for example:
openshift-tests run openshift/conformance/parallel --dry-run | grep 'Network' | openshift-tests run -o /tmp/artifacts/e2e.log --junit-dir /tmp/artifacts/junit -f -

Actual results:
Some network tests will fail on the phase of NodePort

Expected results:
all tests pass

Additional info:
To check that the checksum is disabled ssh into the Worker VM and run:
1. nmcli conn show
take the conn ID
2. nmcli conn show {conn ID}|grep feature-tx-checksum
check that it is marked as off

Comment 3 Steve Milner 2020-04-07 20:49:43 UTC

Moving back to ON_QA to get it back to the right part of the process.

Comment 4 Roy Golan 2020-04-08 07:05:11 UTC

Steve this bug really failedqa and has a pull request to fix this.

https://github.com/openshift/machine-config-operator/pull/1621

Comment 5 Roy Golan 2020-04-08 09:46:30 UTC

Raising priority as this is blocking the ci conformance tests.

Comment 7 Michal Skrivanek 2020-04-08 12:42:34 UTC

This change is not really relevant on 4.5 and is just a workaround for network connectivity with openshift-sdn. 
CI validation is good enough

Comment 8 errata-xmlrpc 2020-07-13 17:25:33 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, 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/RHBA-2020:2409