canonical-ubuntu-qa team mailing list archive

[Jürg Häfliger <1871015@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

-- 
You received this bug notification because you are a member of Canonical
Platform QA Team, which is subscribed to ubuntu-kernel-tests.
https://bugs.launchpad.net/bugs/1871015

Title:
  test_vxlan_under_vrf.sh in net from ubuntu_kernel_selftests failed
  (Check VM connectivity through VXLAN (underlay in the default VRF)
  [FAIL])

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-oem-5.14 package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Invalid
Status in linux-oem-5.14 source package in Bionic:
  Invalid
Status in linux source package in Focal:
  Fix Released
Status in linux-oem-5.14 source package in Focal:
  Fix Released
Status in linux source package in Hirsute:
  Won't Fix
Status in linux-oem-5.14 source package in Hirsute:
  Invalid
Status in linux source package in Impish:
  Fix Released
Status in linux-oem-5.14 source package in Impish:
  Invalid
Status in linux source package in Jammy:
  Fix Released
Status in linux-oem-5.14 source package in Jammy:
  Invalid
Status in linux source package in Kinetic:
  Fix Released
Status in linux-oem-5.14 source package in Kinetic:
  Invalid

Bug description:
  [Impact]
  test_vxlan_under_vrf.sh in the net category of ubuntu_kernel_selftests
  will fail on 5.13 kernel with:

    # selftests: net: test_vxlan_under_vrf.sh
    # Checking HV connectivity [ OK ]
    # Check VM connectivity through VXLAN (underlay in the default VRF) [FAIL]
    not ok 1 selftests: net: test_vxlan_under_vrf.sh # exit=1

  Note that this test is not failing on F-oem-5.14 but it's better to
  have corresponding patches applied to reduce the maintenance cost
  in the future.

  [Fix]
  * e7e4785f selftests: net: test_vxlan_under_vrf: fix HV connectivity test
  * b50d3b46 selftests: test_vxlan_under_vrf: Fix broken test case

  Only F-5.4, I-5.13 and F-oem-5.14 need these patches.

  First patch (e7e4785f):
    - Can be cherry-picked to F-5.4 / Impish 5.13
    - Can be cherry-picked to F-oem-5.14.
  Second patch (b50d3b46):
    - Can be cherry-picked to F-5.4 / Impish 5.13 (-C2 is required while
      applying it due to our SAUCE patches)
    - F-oem-5.14 has already got this one applied.

  The reason why we need the second patch is that after the first one
  got applied, we will see another failure, which we made it an expected
  failure (XFAIL) with SAUCE patches:
    Check VM connectivity through VXLAN (underlay in a VRF) [XFAIL]

  [Test]
  With the patched test_vxlan_under_vrf.sh test, it can pass on Impish
  5.13 and F-oem-5.14 without any issue:
    Checking HV connectivity [ OK ]
    Check VM connectivity through VXLAN (underlay in the default VRF) [ OK ]
    Check VM connectivity through VXLAN (underlay in a VRF) [ OK ]

  [Where problems could occur]
  Change limit to test cases, should not have any real impact to any
  kernel functions. But if these fixes are incorrect we will see
  failures in our regression-testing report. The worst scenario is
  getting false-negative results.

  v2: Update cover-letter content and target in patch title to make it
      easier to read.

  [Original Bug Report]
  Issue found with GCP 5.3.0-1017.18~18.04.1

   # selftests: net: test_vxlan_under_vrf.sh
   # Checking HV connectivity [ OK ]
   # Check VM connectivity through VXLAN (underlay in the default VRF) [FAIL]
   not ok 25 selftests: net: test_vxlan_under_vrf.sh # exit=1

  The failure is different from bug 1837348

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1871015/+subscriptions