FreeBSD-main-amd64-test - Build #24669 - Still Unstable

FreeBSD-main-amd64-test - Build #24669 (0c243cd4a3671bf728f33378ac593c08d8367bc2) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24669/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24669/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24669/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)

0c243cd4a3671bf728f33378ac593c08d8367bc2 by grehan:
Fix issue with Linux guest XHCI	tablet probing.



The failed test cases:

2 tests failed.
FAILED:  sys.kern.shutdown_dgram.unblock

Error Message:
Test case body timed out

FAILED:  sys.kern.unix_passfd_dgram.send_and_shutdown

Error Message:
/usr/src/tests/sys/kern/unix_passfd_test.c:431: openfiles() == nfiles - 1 not met