FreeBSD-main-amd64-test - Build #23090 - Still Unstable

FreeBSD-main-amd64-test - Build #23090 (560f9cd5e1e36ba725f3c677d7b8e514af9f3a85) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23090/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23090/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/23090/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)

61507ae30b9096eaa0d44fec71211f3843d546eb by melifaro:
netlink: add u8/u64 attribute fetcher accessors to snl(3).

ce9f95bd835ec7d3ac6def5a910282509b1413f0 by melifaro:
netlink: fix vlan interface creation

3f5d875a27318a909f23a2b7463c4b2d963085df by markj:
bhyvectl: Address compiler warnings and bump WARNS

ad43dd69cec7b568846b45ff990da6dc86e58467 by markj:
bhyveload: Address compiler warnings and bump WARNS

831601773e5ab58b9485c1b111eb8c7c7343abf6 by markj:
deadlkres: Make parameters settable with tunables

560f9cd5e1e36ba725f3c677d7b8e514af9f3a85 by markj:
posixshm tests: Correct page size index checks



The failed test cases:

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

Error Message:
Returned non-success exit status 1