FreeBSD-main-amd64-test - Build #22857 - Still Unstable

FreeBSD-main-amd64-test - Build #22857 (f5924ad8fde4d5e9c233b821cb6097c6a46740b5) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22857/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22857/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22857/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)

bc4346e0aead0b934773aac5e9a81def46f266ad by bapt:
pci_vendors: update to 2023-01-18

cdd9d92dade61a6b5c37b758e9533a076bb5a2de by kib:
strfmon(3): Add an EXAMPLES section

59cc636d94a6c9b28147304fa59351224f801e92 by kib:
strfmon(3): Wording improvements

f5924ad8fde4d5e9c233b821cb6097c6a46740b5 by kib:
strfmon(3): Match the return type



The failed test cases:

5 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:  usr.sbin.etcupdate.preworld_test.main

Error Message:
Returned non-success exit status 1

FAILED:  sys.aio.aio_test.aio_socket_blocking_short_write

Error Message:
Test case body timed out

FAILED:  sys.aio.aio_test.aio_socket_blocking_short_write_vectored

Error Message:
Test case body timed out

FAILED:  sys.aio.aio_test.aio_socket_short_write_cancel

Error Message:
/usr/src/tests/sys/aio/aio_test.c:1396: aio_error(&iocb) == EINPROGRESS not met