FreeBSD-main-amd64-test - Build #23444 - Still Unstable

FreeBSD-main-amd64-test - Build #23444 (2711d4345e87af0412641936984a3d73505fb525) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23444/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23444/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23444/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)

020edaea2ab05c9cea7d83872f28a4e5e65407e2 by andrew:
Split out pmap_map_delete on arm64

95bc3ba7fec52dd410921544a597aebe8797d60a by kp:
libifconfig: fix incorrect carp output

4f6a5e1d6ce39e968bd01c9a3a299a3a419a480e by melifaro:
netlink: enable NETLINK_SUPPORT by default on all architectures.

9e79038c502433f077b4d3b5bb1c0838329f1ebc by melifaro:
netlink: fix netlink interface operations when netlink is loaded as a

30d7e724db0c9805c9cafdd70a33f546df168d8c by melifaro:
route: show originator PID in netlink monitor

dc818134974a6ed33c3af4c4fb15a47980093aef by melifaro:
netlink: properly zero all fields in the ndmsg header.

56f2446575c78d962b6dda5e3310bec078622f3d by dim:
Apply clang fix for assertion building emulators/rpcs3

6eca9db1e7a52b1060c8999cafb5cb088854aabb by markj:
busdma: Update KMSAN shadow maps later in bounce_bus_dmamap_sync()

b999f2458c5af068a3b35245bf6905baa19e916c by markj:
kinst: do not use DPCPU_ID_GET if we already have the trampoline

bc8dc48437a443ded91d7522aff17830bec23db2 by melifaro:
netlink: add forgotten opt_netlink header

2711d4345e87af0412641936984a3d73505fb525 by melifaro:
netlink: fix debug message on 32-bit archs



The failed test cases:

3 tests failed.
FAILED:  sys.netinet6.test_ip6_output.py.TestIP6OutputScope::test_output6_linklocal_scope[gu_to_ll]

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

FAILED:  sys.file.path_test.path_pipe_fstatat

Error Message:
/usr/src/tests/sys/file/path_test.c:851: fstatat pipe: Not a directory

FAILED:  sys.netlink.test_snl.snl_parse_errmsg_capped

Error Message:
1 checks failed; see output for more details