FreeBSD-stable-14-amd64-test - Build #867 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #867 (bc3dfb03fd4979b50c380c1688cfcc2e3d517361) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/867/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/867/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/867/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)

18bbc3c82e1343d28a1fcad731f28c889602a363 by kevans:
release: vmimage: setup the default BE properly

2882d0c61aebab77e8f2cc5b7cace6186bb8cb01 by kevans:
usb: serial: propagate errors from ucom_queue_command()

2ba5217057bdf94a4929dc7644f4e39be06fdef3 by kevans:
usb: serial: allow the open/close sleep to be interruptible

4c20884b3735a17b668bca49a50b8ace4d7fa4ba by kevans:
usb: serial: make more commands execute synchronously

8094b35e5769e6f8848ce4fd929f898cacc81bc6 by kib:
amd64: extract code to print fault details from trap_fatal() into a new

e27089cda5897633545d3df6707cd06970f03fae by kib:
amd64: on any fault during call to EFI RT, restore execution and print

bc3dfb03fd4979b50c380c1688cfcc2e3d517361 by kib:
efirt: use correct ABI for runtime EFI functions



The failed test cases:

5 tests failed.
FAILED:  sys.kern.sigsys.sigsys_test_off

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  sys.kern.sigsys.sigsys_test_on

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  usr.bin.grep.grep_test.recurse_symlink

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

FAILED:  sys.netmap.ctrl-api-test.main

Error Message:
Returned non-success exit status 255

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly