FreeBSD-main-amd64-test - Build #28017 - Still unstable

FreeBSD-main-amd64-test - Build #28017 (67728a18b9c18e55cc60e063380825b80f25b1b9) - Still unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28017/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28017/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28017/console

Status explanation:
"Unstable" - some tests are suspected being broken by the following changes
"Still Unstable" - the failing test cases have not been fixed by these
                   following changes and this is a notification to note that
                   these changes have not been fully tested by the CI system

Change summaries:
(Those commits are likely but not certainly responsible)

67728a18b9c18e55cc60e063380825b80f25b1b9 by des:
yes: Add tests



The failed test cases:

1 tests failed.
FAILED:  sys.netinet6.proxy_ndp.pndp_neighbor_advert

Error Message:
atf-check failed; see the output of the test for details