FreeBSD-stable-14-amd64-test - Build #178 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #178 (7d1321288ad980182b188834c6e81b568058190a) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/178/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/178/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/178/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)

4587326893d2c7720cd292946d96302a2653b77b by markj:
uma: Hide 'uma_align_cache'; Create/rename accessors

c98dded0c76266740e94ac53e8a2f02be1d61e4f by markj:
uma: UMA_ALIGN_CACHE: Resolve the proper value at use point

0c7a1e66f1376bf8ffb507a674396e4d221fe797 by markj:
arm: Simplify get_cachetype_cp15()

690ca45aeb8c3f521d43246159bd24e15d31500c by markj:
uma: Make the cache alignment mask unsigned

7deedba4e58686ad870767bb29c45235c255937a by markj:
uma: New check_align_mask(): Validate alignments (INVARIANTS)

f946a5ec9692973831db93691ad06a93240d5937 by markj:
linuxkpi: dma_get_cache_alignment(): Fix off-by-one result

25e0e25afd29d029da6ec21e6b7890310ffc25bd by markj:
uma: Permit specifying max of cache line and some custom alignment

7cb0bacf53f2507394d8aa1fc3abbe3ca02f61cd by markj:
arm: Update declarations for arm_dcache_align{,_mask}

e191c0283e8640d46ed6b725e3311d0f37f3620c by markj:
Ensure 'struct thread' is aligned to a cache line

7d1321288ad980182b188834c6e81b568058190a by markj:
stand: Rename LIBFDT to LIBSAFDT



The failed test cases:

6 tests failed.
FAILED:  sys.netinet6.test_ip6_output.py.TestIP6Output::test_output6_pktinfo[empty]

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

FAILED:  sys.netpfil.common.dummynet.pf_queue

Error Message:
We failed prioritisation 1 times

FAILED:  sys.netpfil.pf.forward.v4

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

FAILED:  sys.netpfil.pf.scrub_compat.no_scrub_v6

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

FAILED:  sys.netpfil.pf.set_tos.v4

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

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly