FreeBSD-stable-14-amd64-test - Build #600 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #600 (a8790965b0c6b63ec64c42f236cd09cef06f481c) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/600/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/600/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/600/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)

a8790965b0c6b63ec64c42f236cd09cef06f481c by zlei:
ifnet: Remove dead code



The failed test cases:

5 tests failed.
FAILED:  sbin.ping.ping_test.inject_reply

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

FAILED:  sys.netinet6.frag6.frag6_18.frag6_18

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.geom.class.eli.attach_test.attach_multiple_fails

Error Message:
Premature exit; test case exited with code 1

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly