FreeBSD-stable-14-amd64-test - Build #675 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #675 (f7eb6b134db8fed6a6851b6a3d00a2ea0e11eadd) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/675/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/675/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/675/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)

5a542a60553780b51fdd822af1d9aba53707fc29 by gordon:
release: Redirect etcupdate logfile to /dev/null.

65ae1d493e314f5270cc92315cea0bb2e1afa3b0 by kib:
msdosfs: return ENOENT if looking up invalid name for OPEN or DELETE

f968e0819ddc3b26537d046304472877ff4849c1 by kib:
open(2): mandoc -T lint

97ccb41979bfee6d5bf35886b310e6c9bc7e8eed by kib:
rename(2): Extend EINVAL's description

f7eb6b134db8fed6a6851b6a3d00a2ea0e11eadd by kib:
open(2): Extend EINVAL's description



The failed test cases:

4 tests failed.
FAILED:  sys.netinet6.forward6.fwd_ip6_gu_icmp_iface_slow_success

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

FAILED:  sys.netpfil.pf.scrub_pass.max_mss_v6

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