FreeBSD-main-amd64-test - Build #25739 - Still unstable

FreeBSD-main-amd64-test - Build #25739 (3789810845f14102c88ca31f7dccb18621b960a0) - Still unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25739/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25739/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/25739/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)

4365a13bda5fb9f930b9cca7f9797537695441d7 by imp:
cdefs: Document what we do when _XOPEN_SOURCE is an empty string

459404cbc4e34fd31b184fe63f487c97d1a45783 by imp:
rtsw: Break out as soon as we find we're doing the inversion workaround

accf71534c612b76ee2701f2dfcaa464748e527a by jlduran:
geom: Allow BSD type '!0' partitions

87e87fecb139d60a00837f004de0d37dbecd205c by jlduran:
nanobsd: Remove dependency on bsdlabel

8de007ad19dcda5bea9bac9fb2c140e4ed62ba78 by kbowling:
igc.4: Remove non-existent timer tunables

09000cc133d82fc614d9f61d064e3acf7fa8b875 by glebius:
tcp: mechanically rename hostcache metrics structure fields

b80c06cc0af4a913778d6014eae6ce30e1ec2c68 by glebius:
tcp: use const argument in the TCP hostcache KPI

2944a888eabffd4db47dde0f30aa0f5061460f56 by glebius:
tcp: remove so != NULL check

3789810845f14102c88ca31f7dccb18621b960a0 by glebius:
tcp: avoid bcopy() in tcp_mss_update()



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