FreeBSD-main-amd64-test - Build #24644 - Still Unstable

FreeBSD-main-amd64-test - Build #24644 (bd9ddbc9cd2543a417b22ca3f7705ed4e4eb59ca) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24644/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24644/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24644/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)

f1bc2f67a3e0dd5120c3345c11bd3205b4348b8a by pho:
stress2: Reduce idle time. Remove debug output

bd9ddbc9cd2543a417b22ca3f7705ed4e4eb59ca by pho:
stress2: Remove useless test scenario



The failed test cases:

2 tests failed.
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

FAILED:  sys.net.if_bridge_test.many_bridge_members

Error Message:
Test case body timed out