FreeBSD-stable-15-amd64-test - Build #320 - Still Unstable

FreeBSD-stable-15-amd64-test - Build #320 (b8d96efdd67cf60f71921309d9b40196cf375e21) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/320/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/320/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/320/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)

e69c36339ebafc8b9b95fbf31ea22b7fded391e8 by 0mp:
ministat: Clean up usage message, manual page, and chameleon

19b642b5dc2f000de4e3e55d9da94398ecb0aca3 by emaste:
sys: Bump 32-bit kernel removal to 16.0

81b934008f943f1ca1d5b3b544cfbb5de83dedc4 by jrtc27:
freebsd-update: Mention upgrading packages, not just ports

e0f70ea729c58720f565c85690de5b39a83e640d by jrtc27:
imgact_elf: Fix off-by-one in note size check

7596061c3a39bbacb51b772e64bb8880bf10402f by emaste:
linuxkpi: Add dummy <linux/percpu{,-defs}.h>

c5445540995fd37c390ad371a2e95d300ee83988 by emaste:
linuxkpi: Take const root in read-only radix tree functions

29e3479f2d3068a2f3e2dbb578d3fabf6389e5a6 by emaste:
libc++: avoid use of deprecated builtin

e487653fe43434768b533b1d7f360ec448c05b4c by emaste:
libc++: avoid use of deprecated __reference_binds_to_temporary

703c98dc6eeb2b36ec94e138269a221704e55f4c by emaste:
libc++: Fix deprecation warnings with latest clang

ca149d75e9bd6455abc3c74e7db160464cfabbdb by emaste:
libc++: silence -Wnontrivial-memaccess warning with newer clang

20fc2b332bd24a5e627079ac0dae148c76d81007 by 0mp:
dtrace_pid.4: Document the DTrace PID provider

4f7436bf297b93fd9e835ffca3d56288ce934dc5 by bnovkov:
amd64/vmm.c: Fix an incorrect memory segment check in vm_iommu_{un}map

b8d96efdd67cf60f71921309d9b40196cf375e21 by 0mp:
uio.h: Indent struct uio according to style(9)



The failed test cases:

2 tests failed.
FAILED:  sys.netpfil.pf.route_to.random_table

Error Message:
Target 2001:db8:4202::42:4 not selected after 10 attempts!

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly