FreeBSD-main-amd64-test - Build #23678 - Still Unstable

FreeBSD-main-amd64-test - Build #23678 (6062d9faf23f11e0655f3a222c204725e3111fe8) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23678/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23678/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23678/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)

7ba6119e22b54c2104b1948f0e8a4157d4112958 by des:
ctags: Don't undercount lines when handling // comments.

6d777389e19d3bebde515e88e8405de45d8af7bd by des:
xargs: Fix typo in error message.

6062d9faf23f11e0655f3a222c204725e3111fe8 by markj:
vm_phys: Change the return type of vm_phys_unfree_page() to bool



The failed test cases:

6 tests failed.
FAILED:  sys.fs.fusefs.mknod.main

Error Message:
Returned non-success exit status 1

FAILED:  sys.kern.ptrace_test.ptrace__follow_fork_parent_detached_unrelated_debugger

Error Message:
/usr/src/tests/sys/kern/ptrace_test.c:594: WIFSTOPPED(status) not met

FAILED:  sys.net.if_ovpn.if_ovpn.ra

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

FAILED:  sys.netinet6.frag6.frag6_19.frag6_19

Error Message:
Global IPv6 statistics do not match: 19 != 20

FAILED:  sys.netlink.test_rtnl_ifaddr.py.TestRtNlAddIfaddrLo::test_add_6[gu_host]

Error Message:
/usr/tests/sys/netlink/test_rtnl_ifaddr.py:702: AssertionError

FAILED:  sys.netlink.test_rtnl_ifaddr.py.TestRtNlAddIfaddrLo::test_add_6[gu_prefix]

Error Message:
/usr/tests/sys/netlink/test_rtnl_ifaddr.py:702: AssertionError