FreeBSD-main-amd64-test - Build #21212 - Still unstable

FreeBSD-main-amd64-test - Build #21212 (1452bfcd9bbcb2f5bbb89fa38d01ce51dd9b6d44) - Still unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/21212/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/21212/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/21212/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)

797b94504f4fd457aef694c236705c1bd850f2f7 by kp:
udp6: allow udp_tun_func_t() to indicate it did not eat the packet

1452bfcd9bbcb2f5bbb89fa38d01ce51dd9b6d44 by cy:
libexec/rc.d/hostapd: Down/up interface when interface is specified



The failed test cases:

1 tests failed.
FAILED:  sys.kern.ptrace_test.ptrace__follow_fork_child_detached_unrelated_debugger

Error Message:
/usr/src/tests/sys/kern/ptrace_test.c:603: WIFSTOPPED(status) not met