FreeBSD-main-amd64-test - Build #24674 - Still Unstable

FreeBSD-main-amd64-test - Build #24674 (4958df5dabce62ef4e9e96b0d1bf62f3a6cce689) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24674/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24674/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24674/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)

d7fde2c9eccf90b2a889e92800f3bc07376e84f6 by br:
snd_hdspe(4): One pcm device per physical ADAT port.

4958df5dabce62ef4e9e96b0d1bf62f3a6cce689 by kib:
linuxkpi: correct zone item size for linux_mm_zone



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