FreeBSD-main-amd64-test - Build #22450 - Unstable

FreeBSD-main-amd64-test - Build #22450 (83286682f8485cfaa6ce96e2d43ffbea4a580752) - Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22450/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22450/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22450/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)

185efcc376b9dcb3b920d1053a250ac754ad163a by emaste:
tests: also remove sparc64 case

83286682f8485cfaa6ce96e2d43ffbea4a580752 by mjg:
vfs: whack mips remnant



The failed test cases:

1 tests failed.
FAILED:  sys.netinet6.ndp.ndp_del_gu_success

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