FreeBSD-main-amd64-test - Build #20097 - Still Unstable

FreeBSD-main-amd64-test - Build #20097 (8296d2f9a3bf8e68de2f8e3f98f911b9b9542dad) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20097/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20097/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20097/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)

8296d2f9a3bf8e68de2f8e3f98f911b9b9542dad by pho:
stress2: Added new tests



The failed test cases:

6 tests failed.
FAILED:  lib.libnv.nvlist_send_recv_test.nvlist_send_recv__send_many_fds__dgram

Error Message:
/usr/src/lib/libnv/tests/nvlist_send_recv_test.c:457: nvl != NULL not met

FAILED:  sys.net.if_bridge_test.span

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

FAILED:  sys.netpfil.pf.pfsync.defer

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

FAILED:  sys.netpfil.pf.forward.v6

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

FAILED:  sys.netpfil.pf.set_tos.v6

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

FAILED:  sys.netpfil.pf.killstate.v6

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