[Bug 2067889] Re: DPDK 23.11.1 / OVS 3.3.0 cause test failures

[Christian Ehrhardt ]

The log message I have seen might be a red herring as well [1] added
that but unless something insists on "non-ERR" that should not be the
reason as it is not changing behavior.

But then, what else am I looking for, Frode confirmed that he will do
some triage and debug from the OVS POV which might help to find where
things actually break.

[1]: https://github.com/DPDK/dpdk-
stable/commit/cbd1c165bb1ea86efc31c8ac309ee5e7c5f555cb

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https://bugs.launchpad.net/bugs/2067889

Title:
  DPDK 23.11.1 / OVS 3.3.0 cause test failures

Status in dpdk package in Ubuntu:
  New
Status in openvswitch package in Ubuntu:
  New

Bug description:
  https://autopkgtest.ubuntu.com/packages/o/openvswitch/oracular/amd64

  Bad
  Oracular OVS test with DPDK 23.11.1-1
  https://autopkgtest.ubuntu.com/results/autopkgtest-oracular/oracular/amd64/o/openvswitch/20240531_100906_6f957@/log.gz

  Good
  Oracular OVS test with DPDK 23.11-1
  https://autopkgtest.ubuntu.com/results/autopkgtest-oracular/oracular/amd64/o/openvswitch/20240529_111623_6f8db@/log.gz

  The logs are messy to read if not used to it, this is a try at debugging what is going wrong.
  So far it seems other people have retried 14 times, and 14714 fail at the same tests - I think there is a real issue.

  As shown below, one can find always these fail:
  4: OVS-DPDK - ping vhost-user ports                FAILED (system-dpdk.at:148)
  5: OVS-DPDK - ping vhost-user-client ports         FAILED (system-dpdk.at:224)
  16: OVS-DPDK - MTU increase vport port              FAILED (system-dpdk.at:609)
  17: OVS-DPDK - MTU decrease vport port              FAILED (system-dpdk.at:651)
  20: OVS-DPDK - MTU upper bound vport port           FAILED (system-dpdk.at:767)
  21: OVS-DPDK - MTU lower bound vport port           FAILED (system-dpdk.at:809)

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