FreeBSD-stable-14-amd64-test - Build #917 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #917 (f28415489639df69d4bcda74c1199a6b062ab5cf) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/917/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/917/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/917/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)

221ac9e07859fd50e98a1ef035c3019983065af2 by tuexen:
TCP RACK: remove code that cannot be reached

2632e532c431b3ebb1320a50b5ab78f9f24f3627 by tuexen:
TCP BBR: simplify expression

6ab740bc90c188e757124533e6c4b67e40becb67 by tuexen:
TCP BBR: remove code which is not needed

1d8bbe5ba370f909192818d3be9075caa5fb0730 by tuexen:
TCP RACK: remove variable with is only initialized and not changed

86ec7e524a5d6934b6da618e94dfc35927dba3f1 by tuexen:
TCP RACK: fix TCP fast open

2a704e9ca7e940d960ac493d015af59f0326b9b8 by tuexen:
TCP BBR: remove dead code

c6f745a3e33430e83af1d09e96fc670be6ae2118 by tuexen:
TCP BBR: remove dead code

992f67691ada56b4bd73e2cc1c20d6e6813a88e0 by tuexen:
TCP RACK: fix TCP_RACK_PACING_BETA socket option

0cc48e6317819a1ed2bba523b7014940ef2f9b61 by tuexen:
TCP RACK: don't log an uninitialized value

f28415489639df69d4bcda74c1199a6b062ab5cf by tuexen:
TCP BBR: remove dead code



The failed test cases:

6 tests failed.
FAILED:  sys.net.routing.test_routing_l3.py.TestIfOps::test_change_prefix_route[inet]

Error Message:
/usr/tests/sys/net/routing/test_routing_l3.py:42: AssertionError

FAILED:  sys.kern.sigsys.sigsys_test_off

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  sys.kern.sigsys.sigsys_test_on

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  usr.bin.grep.grep_test.recurse_symlink

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

FAILED:  sys.netmap.ctrl-api-test.main

Error Message:
Returned non-success exit status 255

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly