SR-IOV: 810(wpc): Failed recreated a pod, IPv6 duplicated address

Description of problem:

Pod failed to ping nic itself due to IPv6 duplication check 

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

• 4.15.0-rc.5
• e810 (WPC)

How reproducible:
50%

Steps to Reproduce:
1. Create sriov configuration
2. Create a pod with IPv6 addresses
3. Remove pod
4. Imedietly recreate a pod once it was removed
Actual results:
[elevin@elevin ~]$ oc get pods -n sriov-operator-tests
NAME READY STATUS RESTARTS AGE
testpod-s6rrc 0/1 Init:Error 0 6m2s
 
$ oc logs testpod-s6rrc -n sriov-operator-tests -c inittest
PING 2001:1db8:85a3::1(2001:1db8:85a3::1) 56 data bytes

— 2001:1db8:85a3::1 ping statistics —
30 packets transmitted, 0 received, 100% packet loss, time 29718m 

Additional info:

  ===============
[15338.070114] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[15338.070248] IPv6: ADDRCONF(NETDEV_CHANGE): 259545f0ae056e8: link becomes ready
[15338.119847] device 259545f0ae056e8 entered promiscuous mode
[15338.179242] ice 0000:86:00.0: Clearing port VLAN on VF 3
[15338.179286] iavf 0000:86:01.3: Reset indication received from the PF
[15338.179291] iavf 0000:86:01.3: Scheduling reset task
[15338.334355] iavf 0000:86:01.3 temp_883: renamed from ens5f0v3
[15338.368962] iavf 0000:86:01.3 net1: renamed from temp_883
[15338.527922] iavf 0000:86:01.3 net1: NIC Link is Up Speed is 25 Gbps Full Duplex
[15338.527981] IPv6: ADDRCONF(NETDEV_CHANGE): net1: link becomes ready
[15339.163928] IPv6: net1: IPv6 duplicate address 2001:1db8:85a3::1 used by 9a:80:ce:21:17:2a detected!
[15339.322177] iavf 0000:86:01.2 ens5f0v2: renamed from net1
[15339.387633] device 3c91850b6a1ed58 left promiscuous mode
[15370.180014] iavf 0000:86:01.3 ens5f0v3: renamed from net1
[15370.260556] device 259545f0ae056e8 left promiscuous mode

==================

2024-02-08T20:07:16Z [verbose] ADD finished CNI request ContainerID:"3c91850b6a1ed58618d05e601e86d3995b9b1e6e0862e103fb9d378c8b3f22d4" Netns:"/var/run/netns/deb94dfe-b850-4ba1-8806-d5ac6023369c" IfName:"eth0" Args:"IgnoreUnknown=1;K8S_POD_NAMESPACE=sriov-operator-tests;K8S_POD_NAME=testpod-k2vhb;K8S_POD_INFRA_CONTAINER_ID=3c91850b6a1ed58618d05e601e86d3995b9b1e6e0862e103fb9d378c8b3f22d4;K8S_POD_UID=6a79fe9e-ea2e-44d4-8db5-310a5862bfca" Path:"", result: "{\"Result\":{\"cniVersion\":\"1.0.0\",\"interfaces\":[

{\"name\":\"3c91850b6a1ed58\",\"mac\":\"f2:92:5b:e6:fd:df\"}

,

{\"name\":\"eth0\",\"mac\":\"0a:58:0a:80:03:4b\",\"sandbox\":\"/var/run/netns/deb94dfe-b850-4ba1-8806-d5ac6023369c\"}

],\"ips\":[

{\"interface\":1,\"address\":\"10.128.3.75/23\",\"gateway\":\"10.128.2.1\"}

],\"dns\":{}}}", err: <nil>
2024-02-08T20:07:40Z [verbose] ADD starting CNI request ContainerID:"259545f0ae056e8754b26d638df8c45e192b681fab0967d95e345e64ba622ad6" Netns:"/var/run/netns/424e9bce-b3d6-43fe-81da-2301755627b3" IfName:"eth0" Args:"IgnoreUnknown=1;K8S_POD_NAMESPACE=sriov-operator-tests;K8S_POD_NAME=testpod-s6rrc;K8S_POD_INFRA_CONTAINER_ID=259545f0ae056e8754b26d638df8c45e192b681fab0967d95e345e64ba622ad6;K8S_POD_UID=a9dfafe0-450d-4787-a605-320e634a12da" Path:""
2024-02-08T20:07:40Z [verbose] Add: sriov-operator-tests:testpod-s6rrc:a9dfafe0-450d-4787-a605-320e634a12da:ovn-kubernetes(ovn-kubernetes):eth0 {"cniVersion":"0.4.0","interfaces":[

{"name":"259545f0ae056e8","mac":"b2:c0:b9:e1:61:b8"}

,

{"name":"eth0","mac":"0a:58:0a:80:03:4c","sandbox":"/var/run/netns/424e9bce-b3d6-43fe-81da-2301755627b3"}

],"ips":[

{"version":"4","interface":1,"address":"10.128.3.76/23","gateway":"10.128.2.1"}

],"dns":{}}
I0208 20:07:40.973279 6331 event.go:298] Event(v1.ObjectReference

{Kind:"Pod", Namespace:"sriov-operator-tests", Name:"testpod-s6rrc", UID:"a9dfafe0-450d-4787-a605-320e634a12da", APIVersion:"v1", ResourceVersion:"903288", FieldPath:""}

): type: 'Normal' reason: 'AddedInterface' Add eth0 [10.128.3.76/23] from ovn-kubernetes
2024-02-08T20:07:41Z [verbose] Add: sriov-operator-tests:testpod-s6rrc:a9dfafe0-450d-4787-a605-320e634a12da:sriov-operator-tests/test-sriov-static-custom(test-sriov-static-custom):net1 {"cniVersion":"0.3.1","interfaces":[

{"name":"net1","mac":"de:43:80:f3:62:43","sandbox":"/var/run/netns/424e9bce-b3d6-43fe-81da-2301755627b3"}

],"ips":[

{"version":"4","interface":0,"address":"192.168.100.1/24"}

,

{"version":"6","interface":0,"address":"2001:1db8:85a3::1/64"}

],"dns":{}}
I0208 20:07:41.212002 6331 event.go:298] Event(v1.ObjectReference

{Kind:"Pod", Namespace:"sriov-operator-tests", Name:"testpod-s6rrc", UID:"a9dfafe0-450d-4787-a605-320e634a12da", APIVersion:"v1", ResourceVersion:"903288", FieldPath:""}

): type: 'Normal' reason: 'AddedInterface' Add net1 [192.168.100.1/24 2001:1db8:85a3::1/64] from sriov-operator-tests/test-sriov-static-custom
2024-02-08T20:07:41Z [verbose] ADD finished CNI request ContainerID:"259545f0ae056e8754b26d638df8c45e192b681fab0967d95e345e64ba622ad6" Netns:"/var/run/netns/424e9bce-b3d6-43fe-81da-2301755627b3" IfName:"eth0" Args:"IgnoreUnknown=1;K8S_POD_NAMESPACE=sriov-operator-tests;K8S_POD_NAME=testpod-s6rrc;K8S_POD_INFRA_CONTAINER_ID=259545f0ae056e8754b26d638df8c45e192b681fab0967d95e345e64ba622ad6;K8S_POD_UID=a9dfafe0-450d-4787-a605-320e634a12da" Path:"", result: "{\"Result\":{\"cniVersion\":\"1.0.0\",\"interfaces\":[

{\"name\":\"259545f0ae056e8\",\"mac\":\"b2:c0:b9:e1:61:b8\"}

,

{\"name\":\"eth0\",\"mac\":\"0a:58:0a:80:03:4c\",\"sandbox\":\"/var/run/netns/424e9bce-b3d6-43fe-81da-2301755627b3\"}

],\"ips\":[

{\"interface\":1,\"address\":\"10.128.3.76/23\",\"gateway\":\"10.128.2.1\"}

],\"dns\":{}}}", err: <nil>
2024-02-08T20:07:42Z [verbose] DEL starting CNI request ContainerID:"3c91850b6a1ed58618d05e601e86d3995b9b1e6e0862e103fb9d378c8b3f22d4" Netns:"/var/run/netns/deb94dfe-b850-4ba1-8806-d5ac6023369c" IfName:"eth0" Args:"IgnoreUnknown=1;K8S_POD_NAMESPACE=sriov-operator-tests;K8S_POD_NAME=testpod-k2vhb;K8S_POD_INFRA_CONTAINER_ID=3c91850b6a1ed58618d05e601e86d3995b9b1e6e0862e103fb9d378c8b3f22d4;K8S_POD_UID=6a79fe9e-ea2e-44d4-8db5-310a5862bfca" Path:""

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