FreeBSD-main-amd64-test - Build #26389 - Still Unstable

FreeBSD-main-amd64-test - Build #26389 (f6210541f9e3c6cfda321e0ad98f277fb98a625b) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26389/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26389/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26389/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)

a6bac0a9efa15275ada0f0b0ef784837929fb5c6 by des:
mail: Add test cases for SIGHUP.

181a04415a8b3a3fe8be4b986dce550f09cbb415 by fuz:
lib/libmd: replace SHA-1 implementation with Go's implementation

8b4684afcde3930eb49490f0b8431c4cb2ad9a46 by fuz:
lib/libmd: add optimised SHA1 implementations for amd64

f6210541f9e3c6cfda321e0ad98f277fb98a625b by fuz:
lib/libmd: add optimised SHA1 implementations for aarch64



The failed test cases:

4 tests failed.
FAILED:  sys.opencrypto.runtests.main

Error Message:
1 of 1 tests failed

FAILED:  sys.acl.03.main

Error Message:
1 of 5 tests failed

FAILED:  sys.netinet.broadcast.INADDR_BROADCAST

Error Message:
/usr/src/tests/sys/netinet/broadcast.c:65: sending of broadcast failed: 51

FAILED:  sys.netinet.fibs_test.same_ip_multiple_ifaces_fib0

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