FreeBSD-main-amd64-test - Build #25731 - Still Unstable

FreeBSD-main-amd64-test - Build #25731 (17be774ee710d0727a7a45f823356fa33c207058) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25731/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25731/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25731/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)

c82ed437c67c7f5e092954d9f7194e6be9c28150 by imp:
sys/conf.h: Make more self-contained

6a88766ecdd3a89439c7d21ee8e1ff5706bfde71 by imp:
stand: We don't want signal definitions in the boot loader

c29cba408d197ed2c267d0605e4225bb54153e01 by imp:
stand: Narrow the 'signal emulation' we provide

7255a2969ff9ed2763391c854d7c2bed71a1a1c8 by imp:
stand: Don't need sys/select.h

17be774ee710d0727a7a45f823356fa33c207058 by imp:
stand: unistd.h is no longer safe



The failed test cases:

1 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