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Bug 2022275

Summary: [NMCI] NM_reboot_openvswitch_vlan_configuration failure
Product: Red Hat Enterprise Linux 8 Reporter: Vladimir Benes <vbenes>
Component: NetworkManagerAssignee: Fernando F. Mancera <ferferna>
Status: CLOSED ERRATA QA Contact: Vladimir Benes <vbenes>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 8.4CC: bgalvani, ferferna, lrintel, rkhan, sukulkar, till
Target Milestone: betaKeywords: Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: NetworkManager-1.36.0-0.2.el8 Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-05-10 14:54:52 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:

Description Vladimir Benes 2021-11-11 08:59:24 UTC
This bug was initially created as a copy of Bug #1955101

I am copying this bug because: 
I am seeing this again

OVS is 2.15.2
visible sporadically
it looks like after NM service restart something goes odd and just one port of ovs bond is up
95324ca5-3c6b-4d0f-9bc4-364ff4889d87
    Bridge ovsbridge0
        Port bond0
            tag: 120
            Interface eth3
                type: system
        Port port0
            tag: 120
            Interface iface0
                type: internal
    ovs_version: "2.15.2"

the other is up (from the NM PoV) but not in OVS
--- nmcli c ---
NAME         UUID                                  TYPE           DEVICE     
testeth0     5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03  ethernet       eth0       
ovs-iface0   97912903-3077-40e2-b234-fbacf186f0ec  ovs-interface  iface0     
ovs-eth2     e7e63698-5d5d-4e48-93d8-c20098ade0e7  ethernet       eth2       
ovs-bond0    7ed90b92-d35c-4c91-a467-7324130d386b  ovs-port       bond0      
ovs-bridge0  d79c4bd0-853d-4c9d-9f3a-6a95d131270c  ovs-bridge     ovsbridge0 
ovs-eth3     7b61b193-f3da-4cc3-912b-03762cd4c81f  ethernet       eth3       
ovs-port0    d1a37e03-8667-46f9-992b-12a9c02ed8ab  ovs-port       port0    

^^ This may look like an OVS issue.

full log attached as html

Comment 2 Vladimir Benes 2021-11-15 12:52:08 UTC
adding @may-fail tag as this test is unstable

Comment 3 Vladimir Benes 2021-11-29 13:57:40 UTC
This seems to be failing another way now.. after Reboot step:
using: 
[root@wsfd-netdev34-vm-5 NetworkManager-ci]# test=NM_reboot_openvswitch_vlan_configuration; a=0; while ./test_run.sh $test; do :;((a++)); echo "ATTEMPT $a"; if [ $a -eq 100 ]; then break; fi ; done

52 attempts first time
 4 second time 
59 third time

attaching logs

-> back to assigned

Comment 5 Vladimir Benes 2021-11-29 22:49:09 UTC
ok, the failure was probably caused by an empty DHCP pool. This issue doesn't happen on different env. Moving back to POST.

Comment 8 Vladimir Benes 2021-12-13 13:51:41 UTC
Yeah, as said, after using a larger IPv4 pool in the original environment the issue is gone. 100 attempts passed successfully.

Comment 11 errata-xmlrpc 2022-05-10 14:54:52 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 (NetworkManager bug fix and enhancement 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/RHEA-2022:1985