FreeBSD-main-amd64-test - Build #24399 - Unstable

FreeBSD-main-amd64-test - Build #24399 (1965dd85c3b33ed99cb8ef164dd7c5b20425a85e) - Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24399/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24399/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24399/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)

49a6fbe38728173da74d5b497f700178e2a6c830 by rscheff:
[tcp] add PRR 6937bis heuristic and retire prr_conservative sysctl

0480dccd3f347da0dbccf5917633435d5ce6cb86 by bz:
dpaa2: make software VLANs usable on dpni

964b3408fa872178aacf58f2d84dc43564ec0aa7 by bz:
dpaa2: defer link_state updates until we are up

6c46ebb05dccdcee18f64dc122e6685c05180217 by bz:
dpaa2: fdt improve detection for dpmac/phys

33d55d0d0f33787e9e2796b5000be73af42573bc by kp:
libpfctl: handle allocation failure

498934c5ff51e6b0d3199db5d27ed11b1e8b9582 by kp:
libpfctl: handle pfctl_do_ioctl() failures better

43324ec770f6b598f0ce25487f69a64b3c9822bd by bz:
mii: resort VSC8641 entry in miidevs

1965dd85c3b33ed99cb8ef164dd7c5b20425a85e by bz:
mii: add Vitesse/Microsemi VSC8514



The failed test cases:

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

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

FAILED:  sys.netinet6.test_ip6_output.py.TestIP6OutputMulticast::test_output6_multicast[ff02]

Error Message:
/usr/local/lib/python3.9/multiprocessing/connection.py:383: EOFError