FreeBSD-main-amd64-test - Build #25781 - Still Unstable

FreeBSD-main-amd64-test - Build #25781 (e090646d6f5a4a6848ecd4bcb1f2db498ea3b3e2) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25781/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25781/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25781/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)

35ac34a23bc0e54eb2a2314b906c6e7769dee7f0 by kib:
stdio(3): correct summary information for fileno(3)

7cd756ff4fe7e65a9a3f588904998bf6f4b37623 by kib:
fileno(3): set errno when returning -1

e090646d6f5a4a6848ecd4bcb1f2db498ea3b3e2 by markj:
ndp tests: Update to chase commit 9206c79961986



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