FreeBSD-stable-15-amd64-test - Build #1234 - Still Unstable

FreeBSD-stable-15-amd64-test - Build #1234 (1704808804333ec3feb74f52158e9ee7e7db8b88) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1234/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1234/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-15-amd64-test/1234/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)

fa68eef7e77e0962c311bb4e28e4134d1392814a by adrian:
if_fwsubr: remove ARP target hardware address trimming

f6a8f38629b30a06f2ac2014164da3034e604b21 by adrian:
est: prevent divide-by-zero in est_msr_info

1704808804333ec3feb74f52158e9ee7e7db8b88 by adrian:
kqueue: do not buffer the whole knote report when sizing it



The failed test cases:

4 tests failed.
FAILED:  sys.kern.ptrace_test.ptrace__parent_sees_exit_after_child_debugger

Error Message:
/usr/src/tests/sys/kern/ptrace_test.c:355: WEXITSTATUS(status) (32) == 0 (0) not met

FAILED:  sys.netpfil.pf.pfsync.bulk

Error Message:
state not found on synced host

FAILED:  sys.netpfil.pf.igmp.py.TestIGMP::test_ip_opts

Error Message:
/usr/local/lib/python3.12/site-packages/scapy/packet.py:1985: AttributeError

FAILED:  lib.libexecinfo.sigtramp_test.test_backtrace_sigtramp

Error Message:
/usr/src/lib/libexecinfo/tests/sigtramp_test.c:30: n > 1 not met