FreeBSD-main-amd64-test - Build #23728 - Still Unstable

FreeBSD-main-amd64-test - Build #23728 (171a7bbfc04885150401ab64d96793373a8b2061) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23728/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23728/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23728/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)

171a7bbfc04885150401ab64d96793373a8b2061 by glebius:
tcpdump: fix build with WITHOUT_PF=1



The failed test cases:

3 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.netinet6.frag6.frag6_19.frag6_19

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