FreeBSD-main-amd64-test - Build #21107 - Still Unstable

FreeBSD-main-amd64-test - Build #21107 (a3214fbe7fff8b4914f12e187dcc972e52db548d) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/21107/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/21107/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/21107/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)

287451fd019299b138bab2ee99cdf0f3be495439 by mjg:
pidfile: add pidfile_signal

a3214fbe7fff8b4914f12e187dcc972e52db548d by mjg:
mount: use pidfile_signal



The failed test cases:

4 tests failed.
FAILED:  sys.netpfil.pf.ether.anchor

Error Message:
Failed to set PF rules in alcatraz

FAILED:  sys.netpfil.pf.ether.mac

Error Message:
Failed to set PF rules in alcatraz

FAILED:  sys.netpfil.pf.set_skip.set_skip_group_lo

Error Message:
Failed to set PF rules in alcatraz

FAILED:  sys.netpfil.pf.table.pr251414

Error Message:
Failed to set PF rules in alcatraz