FreeBSD-main-amd64-test - Build #23044 - Still Unstable

FreeBSD-main-amd64-test - Build #23044 (b9c8f4900ce7a18508517ce74a3e644a5ae3c1bd) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23044/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23044/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23044/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)

9873b171697033f9f19608d98bcd1c16cacb92af by mhorne:
bcm_dma: attach at an earlier bus pass

07ccf71451d7377b1a6f3367f738ce7ddb1f2a24 by mhorne:
bcm_dma: don't dereference NULL softc

2c709ee70ade9fd8f77b37917a4169d667dda41d by emaste:
libc: handle zero alignment in memalign()

19a7cf0ce8ea07d93108331aa2099dc7d8973745 by markj:
scmi: Suppress a couple of -Wunused-function warnings

b9c8f4900ce7a18508517ce74a3e644a5ae3c1bd by kevans:
config: drop reference to removed System_spec



The failed test cases:

1 tests failed.
FAILED:  usr.bin.yacc.yacc_tests.main

Error Message:
Returned non-success exit status 1