FreeBSD-stable-14-amd64-test - Build #237 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #237 (c27113379e1e3d2b906c09be1070dcfcf942cdee) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/237/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/237/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/237/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)

e48c3d3a06db6a435207f6c08b4d31e9deb242e7 by gbe:
Document library types in the intro(3) manual page

c154cad532e4b786925d4fdda2cd57da7e6c12eb by mhorne:
hptmv: remove vestigial EVENTHANDLER_DEREGISTER()

9af585120d305ed51888550ca98872c62d948332 by mhorne:
pst-raid.c: sort #includes

d997144b5a98f7e63ef29cd3038bbe71e093b9c4 by mhorne:
geom: sort includes for some files

951d60ee3ada170155b98e919d45e872797d88fa by mhorne:
shutdown: audit shutdown_post_sync event callbacks

9732eb8eae7294a47cd64af5f11221792a984f71 by mhorne:
ctl_ha: don't shutdown threads if scheduler is stopped

c13f564f9176c3d946e61519ddbfa0c1e23114ab by mhorne:
xen: improve shutdown hook

bbfd41d4308be599a374ce8fba73b2d6ec990dcc by mhorne:
alq, siftr: add panic/debugger checks to shutdown hooks

aaebd6d069f50d5524157fcac5253280ce3a8156 by mhorne:
powerpc: better handling of shutdown flags

a8ba64ca91d479346c9a7f99ef3eeceb1976ac13 by mhorne:
iscsi: adjust shutdown_pre_sync handler

121656c2b12ffb0a00085a4d320f2b38b7a7bd3d by mhorne:
pst: improve shutdown_post_sync handler

08b952c56b5e69d752a8a4bf42ff16f666c3eb5d by mhorne:
shutdown: tweak kproc/kthread shutdown check

c27113379e1e3d2b906c09be1070dcfcf942cdee by mhorne:
kern_reboot(): don't clear kdb_active



The failed test cases:

4 tests failed.
FAILED:  sys.netinet6.frag6.frag6_08.frag6_08

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

FAILED:  sys.netinet6.frag6.frag6_16.frag6_16

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

FAILED:  sys.netpfil.pf.fragmentation_pass.no_df

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

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly