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[Koichiro Den <2095209@xxxxxxxxxxxxxxxxxx>]

Found on 2025.01.13/oracular/linux-lowlatency/6.11.0-1009.10 on metal
(riccioli).

N.B. all other "FAIL" besides bridge_parent_id occurred in exactly the
same way as shown in the bug description.

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https://bugs.launchpad.net/bugs/2095209

Title:
  ubuntu_kselftests_net/net:rtnetlink.sh/bridge_parent_id fails on
  Google cloud

Status in ubuntu-kernel-tests:
  New

Bug description:
  Found on gcp/gke/gkeop/generic kernels from oracular/noble when
  deployed to a Google cloud instance. Started in s2024.12.02, kernels
  from the previous cycle (s2024.10.28) which did not report this
  failure report this failure if re-tested today. Test passes if run on
  a local VM.

  Non-verbose output:

  15:42:28 DEBUG| Running 'make run_tests -C net TEST_PROGS=rtnetlink.sh TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
  15:42:28 DEBUG| [stdout] make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kselftests_net/src/linux/tools/testing/selftests/net'
  15:42:28 DEBUG| [stdout] TAP version 13
  15:42:28 DEBUG| [stdout] 1..1
  15:42:28 DEBUG| [stdout] # timeout set to 0
  15:42:28 DEBUG| [stdout] # selftests: net: rtnetlink.sh
  15:42:28 DEBUG| [stdout] # PASS: policy routing
  15:42:28 DEBUG| [stdout] # PASS: route get
  15:42:33 DEBUG| [stdout] # PASS: preferred_lft addresses have expired
  15:42:34 DEBUG| [stdout] # PASS: promote_secondaries complete
  15:42:34 DEBUG| [stdout] # PASS: tc htb hierarchy
  15:42:34 DEBUG| [stdout] # FAIL: ip netconf show neta
  15:42:34 DEBUG| [stdout] # PASS: gre tunnel endpoint
  15:42:34 DEBUG| [stdout] # PASS: gretap
  15:42:34 DEBUG| [stdout] # PASS: ip6gretap
  15:42:34 DEBUG| [stdout] # PASS: erspan
  15:42:34 DEBUG| [stdout] # PASS: ip6erspan
  15:42:34 DEBUG| [stdout] # FAIL: ip netconf show test-br0
  15:42:34 DEBUG| [stdout] # FAIL: ip netconf show testbr-vlan1
  15:42:34 DEBUG| [stdout] # FAIL: ip netconf show test-dummy0
  15:42:34 DEBUG| [stdout] # PASS: bridge setup
  15:42:36 DEBUG| [stdout] # PASS: ipv6 addrlabel
  15:42:36 DEBUG| [stdout] # PASS: set ifalias e47b66b4-7ff5-44f4-856d-5941daa9a3bd for test-dummy0
  15:42:36 DEBUG| [stdout] # PASS: vrf
  15:42:37 DEBUG| [stdout] # PASS: macsec
  15:42:37 DEBUG| [stdout] # PASS: macsec_offload
  15:42:37 DEBUG| [stdout] # PASS: ipsec
  15:42:38 DEBUG| [stdout] # PASS: ipsec_offload
  15:42:38 DEBUG| [stdout] # PASS: bridge fdb get
  15:42:38 DEBUG| [stdout] # PASS: neigh get
  15:42:39 DEBUG| [stdout] # FAIL: bridge_parent_id
  15:42:39 DEBUG| [stdout] # PASS: address proto IPv4
  15:42:39 DEBUG| [stdout] # PASS: address proto IPv6
  15:42:39 DEBUG| [stdout] # PASS: enslave interface in a bond
  15:42:39 DEBUG| [stdout] not ok 1 selftests: net: rtnetlink.sh # exit=1

  Verbose output for bridge_parent_id:

  COMMAND: modprobe -q netdevsim
  COMMAND: ip link add name test-bond0 type bond mode 802.3ad
  COMMAND: ip link set dev eni10np1 master test-bond0
      Error: Device can not be enslaved while up.
  COMMAND: ip link set dev eni20np1 master test-bond0
      Error: Device can not be enslaved while up.
  COMMAND: ip link add name test-br0 type bridge
  COMMAND: ip link set dev test-bond0 master test-br0
  FAIL: bridge_parent_id

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