Bug 1820975

Summary: [oVirt] disable tx checksum offload for workers
Product: OpenShift Container Platform Reporter: Gal Zaidman <gzaidman>
Component: Machine Config OperatorAssignee: Gal Zaidman <gzaidman>
Status: CLOSED ERRATA QA Contact: Michael Nguyen <mnguyen>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 4.4CC: kgarriso, mnguyen, rgolan, smilner, wsun
Target Milestone: ---   
Target Release: 4.4.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: ovirt
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of:
: 1821005 (view as bug list) Environment:
Last Closed: 2020-05-04 11:48:25 UTC Type: Bug
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: 1821005    
Bug Blocks:    

Description Gal Zaidman 2020-04-05 07:45:02 UTC 
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 1 Roy Golan 2020-04-08 09:45:15 UTC 
raising priority because this is blocking the CI conformance test.
Comment 8 Michael Nguyen 2020-04-24 13:29:57 UTC 
Verified based on CI results.
Comment 10 errata-xmlrpc 2020-05-04 11:48:25 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-2020:0581