FreeBSD-main-amd64-test - Build #24993 - Still Unstable

FreeBSD-main-amd64-test - Build #24993 (caccf6d3c008d3c778986734c2705cdae849a877) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24993/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24993/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24993/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)

a1ecbc57011758257b85c3e9f51efc93ac93169d by kp:
pf: fix use-after-free

81debbd60e5773e812e9227a2003ea88699580be by kp:
pfsync: fix use of invalidated stack variable

caccf6d3c008d3c778986734c2705cdae849a877 by kp:
pfsync: cope with multiple pending plus messages



The failed test cases:

4 tests failed.
FAILED:  sys.netpfil.common.dummynet.ipfw_pls_gilbert

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

FAILED:  sys.netinet6.proxy_ndp.pndp_neighbor_advert

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

FAILED:  sys.fs.tmpfs.times_test.empty

Error Message:
Test case was expecting a failure but none were raised

FAILED:  cddl.usr.sbin.zfsd.zfsd_unittest.main

Error Message:
Received signal 6