The mentioned test is still flaky, unusally enough in 'fast' environments.
Patch 2/2 [try to] address the existing issues, while patch 1/2 introduces more strict tests for the existing net helpers, to hopefully prevent future pain.
Paolo Abeni (2): selftests: net: more strict check in net_helper selftests: net: more pmtu.sh fixes
tools/testing/selftests/net/net_helper.sh | 11 +++++++---- tools/testing/selftests/net/pmtu.sh | 4 ++-- 2 files changed, 9 insertions(+), 6 deletions(-)