[    3.317421] openvswitch: Open vSwitch switching datapath
[    5.468466] ip (303) used greatest stack depth: 12328 bytes left
[   25.891007] tc (1159) used greatest stack depth: 11992 bytes left
[  142.365738] br0: port 1(veth_A-C) entered blocking state
[  142.365813] br0: port 1(veth_A-C) entered disabled state
[  142.365876] veth_A-C: entered allmulticast mode
[  142.366036] veth_A-C: entered promiscuous mode
[  142.366111] br0: port 1(veth_A-C) entered blocking state
[  142.366158] br0: port 1(veth_A-C) entered forwarding state
[  142.537709] br0: port 2(vxlan_a) entered blocking state
[  142.537787] br0: port 2(vxlan_a) entered disabled state
[  142.537851] vxlan_a: entered allmulticast mode
[  142.537960] vxlan_a: entered promiscuous mode
[  142.650254] br0: port 2(vxlan_a) entered blocking state
[  142.650332] br0: port 2(vxlan_a) entered forwarding state
[  145.529276] vxlan_a: left allmulticast mode
[  145.529328] vxlan_a: left promiscuous mode
[  145.529372] br0: port 2(vxlan_a) entered disabled state
[  145.529513] veth_A-C: left allmulticast mode
[  145.529551] veth_A-C: left promiscuous mode
[  145.529589] br0: port 1(veth_A-C) entered disabled state
[  150.385728] br0: port 1(veth_A-C) entered blocking state
[  150.385797] br0: port 1(veth_A-C) entered disabled state
[  150.385862] veth_A-C: entered allmulticast mode
[  150.385960] veth_A-C: entered promiscuous mode
[  150.386042] br0: port 1(veth_A-C) entered blocking state
[  150.386094] br0: port 1(veth_A-C) entered forwarding state
[  150.538868] br0: port 2(vxlan_a) entered blocking state
[  150.538944] br0: port 2(vxlan_a) entered disabled state
[  150.539011] vxlan_a: entered allmulticast mode
[  150.539101] vxlan_a: entered promiscuous mode
[  150.644350] br0: port 2(vxlan_a) entered blocking state
[  150.644425] br0: port 2(vxlan_a) entered forwarding state
[  153.545573] vxlan_a: left allmulticast mode
[  153.545640] vxlan_a: left promiscuous mode
[  153.545700] br0: port 2(vxlan_a) entered disabled state
[  153.545846] veth_A-C: left allmulticast mode
[  153.545926] veth_A-C: left promiscuous mode
[  153.545976] br0: port 1(veth_A-C) entered disabled state
[  158.544382] br0: port 1(veth_A-C) entered blocking state
[  158.544461] br0: port 1(veth_A-C) entered disabled state
[  158.544529] veth_A-C: entered allmulticast mode
[  158.544614] veth_A-C: entered promiscuous mode
[  158.544689] br0: port 1(veth_A-C) entered blocking state
[  158.544745] br0: port 1(veth_A-C) entered forwarding state
[  158.704474] br0: port 2(vxlan_a) entered blocking state
[  158.704552] br0: port 2(vxlan_a) entered disabled state
[  158.704618] vxlan_a: entered allmulticast mode
[  158.704703] vxlan_a: entered promiscuous mode
[  158.800664] br0: port 2(vxlan_a) entered blocking state
[  158.800735] br0: port 2(vxlan_a) entered forwarding state
[  161.608374] vxlan_a: left allmulticast mode
[  161.608432] vxlan_a: left promiscuous mode
[  161.608479] br0: port 2(vxlan_a) entered disabled state
[  161.608613] veth_A-C: left allmulticast mode
[  161.608651] veth_A-C: left promiscuous mode
[  161.608690] br0: port 1(veth_A-C) entered disabled state
[  166.441415] br0: port 1(veth_A-C) entered blocking state
[  166.441487] br0: port 1(veth_A-C) entered disabled state
[  166.441545] veth_A-C: entered allmulticast mode
[  166.441628] veth_A-C: entered promiscuous mode
[  166.441704] br0: port 1(veth_A-C) entered blocking state
[  166.441752] br0: port 1(veth_A-C) entered forwarding state
[  166.591030] br0: port 2(vxlan_a) entered blocking state
[  166.591100] br0: port 2(vxlan_a) entered disabled state
[  166.591158] vxlan_a: entered allmulticast mode
[  166.591229] vxlan_a: entered promiscuous mode
[  166.691009] br0: port 2(vxlan_a) entered blocking state
[  166.691078] br0: port 2(vxlan_a) entered forwarding state
[  169.609459] vxlan_a: left allmulticast mode
[  169.609539] vxlan_a: left promiscuous mode
[  169.609606] br0: port 2(vxlan_a) entered disabled state
[  169.609766] veth_A-C: left allmulticast mode
[  169.609831] veth_A-C: left promiscuous mode
[  169.609904] br0: port 1(veth_A-C) entered disabled state
[  174.409267] br0: port 1(veth_A-C) entered blocking state
[  174.409347] br0: port 1(veth_A-C) entered disabled state
[  174.409421] veth_A-C: entered allmulticast mode
[  174.409523] veth_A-C: entered promiscuous mode
[  174.409613] br0: port 1(veth_A-C) entered blocking state
[  174.409669] br0: port 1(veth_A-C) entered forwarding state
[  174.579363] br0: port 2(vxlan_a) entered blocking state
[  174.579445] br0: port 2(vxlan_a) entered disabled state
[  174.579518] vxlan_a: entered allmulticast mode
[  174.579625] vxlan_a: entered promiscuous mode
[  174.680245] br0: port 2(vxlan_a) entered blocking state
[  174.680321] br0: port 2(vxlan_a) entered forwarding state
[  177.503238] vxlan_a: left allmulticast mode
[  177.503309] vxlan_a: left promiscuous mode
[  177.503351] br0: port 2(vxlan_a) entered disabled state
[  177.503492] veth_A-C: left allmulticast mode
[  177.503530] veth_A-C: left promiscuous mode
[  177.503573] br0: port 1(veth_A-C) entered disabled state
[  182.443388] br0: port 1(veth_A-C) entered blocking state
[  182.443443] br0: port 1(veth_A-C) entered disabled state
[  182.443491] veth_A-C: entered allmulticast mode
[  182.443566] veth_A-C: entered promiscuous mode
[  182.443630] br0: port 1(veth_A-C) entered blocking state
[  182.443665] br0: port 1(veth_A-C) entered forwarding state
[  182.598969] br0: port 2(vxlan_a) entered blocking state
[  182.599024] br0: port 2(vxlan_a) entered disabled state
[  182.599071] vxlan_a: entered allmulticast mode
[  182.599136] vxlan_a: entered promiscuous mode
[  182.687058] br0: port 2(vxlan_a) entered blocking state
[  182.687127] br0: port 2(vxlan_a) entered forwarding state
[  185.499192] vxlan_a: left allmulticast mode
[  185.499238] vxlan_a: left promiscuous mode
[  185.499280] br0: port 2(vxlan_a) entered disabled state
[  185.499410] veth_A-C: left allmulticast mode
[  185.499455] veth_A-C: left promiscuous mode
[  185.499493] br0: port 1(veth_A-C) entered disabled state
[  190.153586] br0: port 1(veth_A-C) entered blocking state
[  190.153669] br0: port 1(veth_A-C) entered disabled state
[  190.153741] veth_A-C: entered allmulticast mode
[  190.153833] veth_A-C: entered promiscuous mode
[  190.154010] br0: port 1(veth_A-C) entered blocking state
[  190.154065] br0: port 1(veth_A-C) entered forwarding state
[  190.314249] br0: port 2(vxlan_a) entered blocking state
[  190.314329] br0: port 2(vxlan_a) entered disabled state
[  190.314399] vxlan_a: entered allmulticast mode
[  190.314503] vxlan_a: entered promiscuous mode
[  190.413473] br0: port 2(vxlan_a) entered blocking state
[  190.413526] br0: port 2(vxlan_a) entered forwarding state
[  192.822973] ping6 (6341) used greatest stack depth: 11968 bytes left
[  193.240159] vxlan_a: left allmulticast mode
[  193.240206] vxlan_a: left promiscuous mode
[  193.240247] br0: port 2(vxlan_a) entered disabled state
[  193.240385] veth_A-C: left allmulticast mode
[  193.240430] veth_A-C: left promiscuous mode
[  193.240470] br0: port 1(veth_A-C) entered disabled state
[  197.861789] br0: port 1(veth_A-C) entered blocking state
[  197.861862] br0: port 1(veth_A-C) entered disabled state
[  197.861938] veth_A-C: entered allmulticast mode
[  197.862029] veth_A-C: entered promiscuous mode
[  197.862104] br0: port 1(veth_A-C) entered blocking state
[  197.862151] br0: port 1(veth_A-C) entered forwarding state
[  198.011936] br0: port 2(vxlan_a) entered blocking state
[  198.011991] br0: port 2(vxlan_a) entered disabled state
[  198.012037] vxlan_a: entered allmulticast mode
[  198.012112] vxlan_a: entered promiscuous mode
[  198.101145] br0: port 2(vxlan_a) entered blocking state
[  198.101203] br0: port 2(vxlan_a) entered forwarding state
[  200.494022] ping6 (6587) used greatest stack depth: 11944 bytes left
[  200.928071] vxlan_a: left allmulticast mode
[  200.928130] vxlan_a: left promiscuous mode
[  200.928172] br0: port 2(vxlan_a) entered disabled state
[  200.928284] veth_A-C: left allmulticast mode
[  200.928333] veth_A-C: left promiscuous mode
[  200.928386] br0: port 1(veth_A-C) entered disabled state
[  205.327433] br0: port 1(veth_A-C) entered blocking state
[  205.327487] br0: port 1(veth_A-C) entered disabled state
[  205.327535] veth_A-C: entered allmulticast mode
[  205.327597] veth_A-C: entered promiscuous mode
[  205.327656] br0: port 1(veth_A-C) entered blocking state
[  205.327689] br0: port 1(veth_A-C) entered forwarding state
[  205.491207] br0: port 2(geneve_a) entered blocking state
[  205.491280] br0: port 2(geneve_a) entered disabled state
[  205.491330] geneve_a: entered allmulticast mode
[  205.491407] geneve_a: entered promiscuous mode
[  205.592771] br0: port 2(geneve_a) entered blocking state
[  205.592895] br0: port 2(geneve_a) entered forwarding state
[  208.428651] geneve_a: left allmulticast mode
[  208.428712] geneve_a: left promiscuous mode
[  208.428756] br0: port 2(geneve_a) entered disabled state
[  208.428878] veth_A-C: left allmulticast mode
[  208.428926] veth_A-C: left promiscuous mode
[  208.428955] br0: port 1(veth_A-C) entered disabled state
[  213.265452] br0: port 1(veth_A-C) entered blocking state
[  213.265532] br0: port 1(veth_A-C) entered disabled state
[  213.265604] veth_A-C: entered allmulticast mode
[  213.265700] veth_A-C: entered promiscuous mode
[  213.265788] br0: port 1(veth_A-C) entered blocking state
[  213.265841] br0: port 1(veth_A-C) entered forwarding state
[  213.428782] br0: port 2(geneve_a) entered blocking state
[  213.428857] br0: port 2(geneve_a) entered disabled state
[  213.428924] geneve_a: entered allmulticast mode
[  213.429021] geneve_a: entered promiscuous mode
[  213.528407] br0: port 2(geneve_a) entered blocking state
[  213.528476] br0: port 2(geneve_a) entered forwarding state
[  216.402363] geneve_a: left allmulticast mode
[  216.402443] geneve_a: left promiscuous mode
[  216.402508] br0: port 2(geneve_a) entered disabled state
[  216.402648] veth_A-C: left allmulticast mode
[  216.402708] veth_A-C: left promiscuous mode
[  216.402766] br0: port 1(veth_A-C) entered disabled state
[  221.188568] br0: port 1(veth_A-C) entered blocking state
[  221.188635] br0: port 1(veth_A-C) entered disabled state
[  221.188696] veth_A-C: entered allmulticast mode
[  221.188773] veth_A-C: entered promiscuous mode
[  221.188844] br0: port 1(veth_A-C) entered blocking state
[  221.188897] br0: port 1(veth_A-C) entered forwarding state
[  221.333077] br0: port 2(geneve_a) entered blocking state
[  221.333130] br0: port 2(geneve_a) entered disabled state
[  221.333177] geneve_a: entered allmulticast mode
[  221.333246] geneve_a: entered promiscuous mode
[  221.425713] br0: port 2(geneve_a) entered blocking state
[  221.425779] br0: port 2(geneve_a) entered forwarding state
[  224.285639] geneve_a: left allmulticast mode
[  224.285702] geneve_a: left promiscuous mode
[  224.285749] br0: port 2(geneve_a) entered disabled state
[  224.285909] veth_A-C: left allmulticast mode
[  224.285964] veth_A-C: left promiscuous mode
[  224.286008] br0: port 1(veth_A-C) entered disabled state
[  229.219151] br0: port 1(veth_A-C) entered blocking state
[  229.219216] br0: port 1(veth_A-C) entered disabled state
[  229.219275] veth_A-C: entered allmulticast mode
[  229.219371] veth_A-C: entered promiscuous mode
[  229.219461] br0: port 1(veth_A-C) entered blocking state
[  229.219509] br0: port 1(veth_A-C) entered forwarding state
[  229.388279] br0: port 2(geneve_a) entered blocking state
[  229.388353] br0: port 2(geneve_a) entered disabled state
[  229.388418] geneve_a: entered allmulticast mode
[  229.388506] geneve_a: entered promiscuous mode
[  229.488776] br0: port 2(geneve_a) entered blocking state
[  229.488845] br0: port 2(geneve_a) entered forwarding state
[  232.352776] geneve_a: left allmulticast mode
[  232.352840] geneve_a: left promiscuous mode
[  232.352906] br0: port 2(geneve_a) entered disabled state
[  232.353038] veth_A-C: left allmulticast mode
[  232.353084] veth_A-C: left promiscuous mode
[  232.353129] br0: port 1(veth_A-C) entered disabled state
[  236.872063] br0: port 1(veth_A-C) entered blocking state
[  236.872129] br0: port 1(veth_A-C) entered disabled state
[  236.872189] veth_A-C: entered allmulticast mode
[  236.872276] veth_A-C: entered promiscuous mode
[  236.872358] br0: port 1(veth_A-C) entered blocking state
[  236.872404] br0: port 1(veth_A-C) entered forwarding state
[  237.024553] br0: port 2(geneve_a) entered blocking state
[  237.024620] br0: port 2(geneve_a) entered disabled state
[  237.024675] geneve_a: entered allmulticast mode
[  237.024756] geneve_a: entered promiscuous mode
[  237.115667] br0: port 2(geneve_a) entered blocking state
[  237.115728] br0: port 2(geneve_a) entered forwarding state
[  239.888701] geneve_a: left allmulticast mode
[  239.888761] geneve_a: left promiscuous mode
[  239.888804] br0: port 2(geneve_a) entered disabled state
[  239.888966] veth_A-C: left allmulticast mode
[  239.889010] veth_A-C: left promiscuous mode
[  239.889050] br0: port 1(veth_A-C) entered disabled state
[  244.652514] br0: port 1(veth_A-C) entered blocking state
[  244.652577] br0: port 1(veth_A-C) entered disabled state
[  244.652634] veth_A-C: entered allmulticast mode
[  244.652721] veth_A-C: entered promiscuous mode
[  244.652799] br0: port 1(veth_A-C) entered blocking state
[  244.652846] br0: port 1(veth_A-C) entered forwarding state
[  244.814216] br0: port 2(geneve_a) entered blocking state
[  244.814302] br0: port 2(geneve_a) entered disabled state
[  244.814378] geneve_a: entered allmulticast mode
[  244.814486] geneve_a: entered promiscuous mode
[  244.912422] br0: port 2(geneve_a) entered blocking state
[  244.912499] br0: port 2(geneve_a) entered forwarding state
[  247.740530] geneve_a: left allmulticast mode
[  247.740591] geneve_a: left promiscuous mode
[  247.740633] br0: port 2(geneve_a) entered disabled state
[  247.740780] veth_A-C: left allmulticast mode
[  247.740820] veth_A-C: left promiscuous mode
[  247.740870] br0: port 1(veth_A-C) entered disabled state
[  252.249730] br0: port 1(veth_A-C) entered blocking state
[  252.249801] br0: port 1(veth_A-C) entered disabled state
[  252.249872] veth_A-C: entered allmulticast mode
[  252.249971] veth_A-C: entered promiscuous mode
[  252.250053] br0: port 1(veth_A-C) entered blocking state
[  252.250106] br0: port 1(veth_A-C) entered forwarding state
[  252.400615] br0: port 2(geneve_a) entered blocking state
[  252.400686] br0: port 2(geneve_a) entered disabled state
[  252.400740] geneve_a: entered allmulticast mode
[  252.400836] geneve_a: entered promiscuous mode
[  252.487915] br0: port 2(geneve_a) entered blocking state
[  252.487976] br0: port 2(geneve_a) entered forwarding state
[  255.276407] geneve_a: left allmulticast mode
[  255.276479] geneve_a: left promiscuous mode
[  255.276534] br0: port 2(geneve_a) entered disabled state
[  255.276682] veth_A-C: left allmulticast mode
[  255.276735] veth_A-C: left promiscuous mode
[  255.276779] br0: port 1(veth_A-C) entered disabled state
[  259.671318] br0: port 1(veth_A-C) entered blocking state
[  259.671403] br0: port 1(veth_A-C) entered disabled state
[  259.671470] veth_A-C: entered allmulticast mode
[  259.671549] veth_A-C: entered promiscuous mode
[  259.671626] br0: port 1(veth_A-C) entered blocking state
[  259.671673] br0: port 1(veth_A-C) entered forwarding state
[  259.806146] br0: port 2(geneve_a) entered blocking state
[  259.806244] br0: port 2(geneve_a) entered disabled state
[  259.806316] geneve_a: entered allmulticast mode
[  259.806413] geneve_a: entered promiscuous mode
[  259.894166] br0: port 2(geneve_a) entered blocking state
[  259.894223] br0: port 2(geneve_a) entered forwarding state
[  262.681715] geneve_a: left allmulticast mode
[  262.681788] geneve_a: left promiscuous mode
[  262.681835] br0: port 2(geneve_a) entered disabled state
[  262.681980] veth_A-C: left allmulticast mode
[  262.682044] veth_A-C: left promiscuous mode
[  262.682106] br0: port 1(veth_A-C) entered disabled state
[  267.858570] netlink: 'python3': attribute type 2 has an invalid length.
[  267.858878] ovs_br0: entered promiscuous mode
[  269.070449] veth_A-C: entered promiscuous mode
[  270.189607] vxlan_a: entered promiscuous mode
[  280.029273] veth_A-C (unregistering): left promiscuous mode
[  281.250446] vxlan_a: left promiscuous mode
[  283.251226] ovs_br0: left promiscuous mode
[  285.050547] netlink: 'python3': attribute type 2 has an invalid length.
[  285.050798] ovs_br0: entered promiscuous mode
[  286.209225] veth_A-C: entered promiscuous mode
[  287.320231] vxlan_a: entered promiscuous mode
[  297.225284] veth_A-C (unregistering): left promiscuous mode
[  298.339196] vxlan_a: left promiscuous mode
[  300.317519] ovs_br0: left promiscuous mode
[  302.053476] netlink: 'python3': attribute type 2 has an invalid length.
[  302.053813] ovs_br0: entered promiscuous mode
[  303.182971] veth_A-C: entered promiscuous mode
[  304.215737] vxlan_a: entered promiscuous mode
[  313.676251] veth_A-C (unregistering): left promiscuous mode
[  314.793668] vxlan_a: left promiscuous mode
[  316.694270] ovs_br0: left promiscuous mode
[  318.737302] netlink: 'python3': attribute type 2 has an invalid length.
[  318.737636] ovs_br0: entered promiscuous mode
[  319.907660] veth_A-C: entered promiscuous mode
[  321.041533] vxlan_a: entered promiscuous mode
[  330.656372] veth_A-C (unregistering): left promiscuous mode
[  331.748072] vxlan_a: left promiscuous mode
[  333.590470] ovs_br0: left promiscuous mode
[  335.305562] netlink: 'python3': attribute type 2 has an invalid length.
[  335.305866] ovs_br0: entered promiscuous mode
[  336.479030] veth_A-C: entered promiscuous mode
[  337.635978] vxlan_a: entered promiscuous mode
[  347.688224] veth_A-C (unregistering): left promiscuous mode
[  349.745761] vxlan_a: left promiscuous mode
[  355.877304] ovs_br0: left promiscuous mode
[  358.763595] netlink: 'python3': attribute type 2 has an invalid length.
[  358.763925] ovs_br0: entered promiscuous mode
[  360.185978] veth_A-C: entered promiscuous mode
[  361.448120] vxlan_a: entered promiscuous mode
[  371.959292] veth_A-C (unregistering): left promiscuous mode
[  373.003132] vxlan_a: left promiscuous mode
[  375.153588] ovs_br0: left promiscuous mode
[  377.064954] netlink: 'python3': attribute type 2 has an invalid length.
[  377.065192] ovs_br0: entered promiscuous mode
[  378.221025] veth_A-C: entered promiscuous mode
[  379.315607] vxlan_a: entered promiscuous mode
[  389.459324] veth_A-C (unregistering): left promiscuous mode
[  390.616680] vxlan_a: left promiscuous mode
[  392.687685] ovs_br0: left promiscuous mode
[  394.875460] netlink: 'python3': attribute type 2 has an invalid length.
[  394.875724] ovs_br0: entered promiscuous mode
[  396.169501] veth_A-C: entered promiscuous mode
[  397.379749] vxlan_a: entered promiscuous mode
[  408.142389] veth_A-C (unregistering): left promiscuous mode
[  409.369478] vxlan_a: left promiscuous mode
[  411.504336] ovs_br0: left promiscuous mode
[  413.448580] netlink: 'python3': attribute type 2 has an invalid length.
[  413.448851] ovs_br0: entered promiscuous mode
[  414.725654] veth_A-C: entered promiscuous mode
[  415.863699] geneve_a: entered promiscuous mode
[  425.907333] veth_A-C (unregistering): left promiscuous mode
[  428.220828] geneve_a: left promiscuous mode
[  429.298734] ovs_br0: left promiscuous mode
[  431.289920] netlink: 'python3': attribute type 2 has an invalid length.
[  431.290181] ovs_br0: entered promiscuous mode
[  432.467410] veth_A-C: entered promiscuous mode
[  433.514961] geneve_a: entered promiscuous mode
[  443.370339] veth_A-C (unregistering): left promiscuous mode
[  445.483594] geneve_a: left promiscuous mode
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[  448.376610] netlink: 'python3': attribute type 2 has an invalid length.
[  448.376952] ovs_br0: entered promiscuous mode
[  449.568987] veth_A-C: entered promiscuous mode
[  450.623849] geneve_a: entered promiscuous mode
[  460.749300] veth_A-C (unregistering): left promiscuous mode
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[  465.917557] netlink: 'python3': attribute type 2 has an invalid length.
[  465.917863] ovs_br0: entered promiscuous mode
[  467.100760] veth_A-C: entered promiscuous mode
[  468.301742] geneve_a: entered promiscuous mode
[  478.578240] veth_A-C (unregistering): left promiscuous mode
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[  483.620745] netlink: 'python3': attribute type 2 has an invalid length.
[  483.621030] ovs_br0: entered promiscuous mode
[  484.799945] veth_A-C: entered promiscuous mode
[  485.860598] geneve_a: entered promiscuous mode
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[  500.416385] netlink: 'python3': attribute type 2 has an invalid length.
[  500.416710] ovs_br0: entered promiscuous mode
[  501.710120] veth_A-C: entered promiscuous mode
[  503.081935] geneve_a: entered promiscuous mode
[  512.641192] veth_A-C (unregistering): left promiscuous mode
[  514.615483] geneve_a: left promiscuous mode
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[  517.323261] netlink: 'python3': attribute type 2 has an invalid length.
[  517.323510] ovs_br0: entered promiscuous mode
[  518.599050] veth_A-C: entered promiscuous mode
[  519.956450] geneve_a: entered promiscuous mode
[  530.393234] veth_A-C (unregistering): left promiscuous mode
[  532.685385] geneve_a: left promiscuous mode
[  533.694970] ovs_br0: left promiscuous mode
[  536.386726] netlink: 'python3': attribute type 2 has an invalid length.
[  536.387100] ovs_br0: entered promiscuous mode
[  537.773268] veth_A-C: entered promiscuous mode
[  538.949782] geneve_a: entered promiscuous mode
[  549.140461] veth_A-C (unregistering): left promiscuous mode
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[  552.519241] ovs_br0: left promiscuous mode
[  662.275110] Initializing XFRM netlink socket
[  744.220924] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 5