FreeBSD-main-amd64-test - Build #23703 - Still Unstable

FreeBSD-main-amd64-test - Build #23703 (6024564cd4da1f7a24c7e13a4aa6b04707eafb60) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23703/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23703/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23703/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)

61fe63f698148f8d63fe6f366c5e20bc7ad60b87 by imp:
makesyscall: Stop generating $FreeBSD$

9121945d70032d3e3694dc95d2f574522b4105d2 by imp:
Regenerate sysent stuff after $FreeBSD$ removal

e022f2b0131af6848da2b921698c52b547e60e8b by rrs:
tcp: Rack fixes and misc updates

7bb4d1302cf76bf84a76232532a3b7d4d28554bf by stevek:
veriexec: Do not save error from file info in fingerprint status

92d817ad6bc6207a8d0550340c7e606c07302459 by bapt:
nlsysevent: remove useless CFLAGS

6024564cd4da1f7a24c7e13a4aa6b04707eafb60 by emaste:
Cirrus-CI: split main script into separate world + kernel



The failed test cases:

4 tests failed.
FAILED:  sys.net.if_ovpn.if_ovpn.ra

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

FAILED:  sys.netinet6.frag6.frag6_19.frag6_19

Error Message:
Global IPv6 statistics do not match: 19 != 20

FAILED:  sys.netlink.test_rtnl_ifaddr.py.TestRtNlAddIfaddrLo::test_add_6[gu_host]

Error Message:
/usr/tests/sys/netlink/test_rtnl_ifaddr.py:702: AssertionError

FAILED:  sys.netlink.test_rtnl_ifaddr.py.TestRtNlAddIfaddrLo::test_add_6[gu_prefix]

Error Message:
/usr/tests/sys/netlink/test_rtnl_ifaddr.py:702: AssertionError