FreeBSD-main-amd64-test - Build #22726 - Still Unstable

FreeBSD-main-amd64-test - Build #22726 (6ab555cff601e42a514db16f6d9b7fd0a4ef94cd) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22726/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22726/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22726/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)

6ab555cff601e42a514db16f6d9b7fd0a4ef94cd by eugen:
syslog(3): expand a commentary adding a reference to RFC 3164.



The failed test cases:

4 tests failed.
FAILED:  sys.netinet6.test_ip6_output.py.TestIP6OutputLoopback::test_output6_self_tcp[ll-sav]

Error Message:
/usr/tests/atf_python/sys/net/tools.py:72: IndexError

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