FreeBSD-main-amd64-test - Build #26668 - Still Unstable

FreeBSD-main-amd64-test - Build #26668 (1395712cab8e95808064ba68c5a792b7cd0fe35f) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26668/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26668/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26668/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)

1395712cab8e95808064ba68c5a792b7cd0fe35f by kevlo:
uchcom: add support for CH9102 and CH343 uarts



The failed test cases:

2 tests failed.
FAILED:  cddl.lib.libtpool.libtpool_test.complete_exhaustion

Error Message:
/usr/src/cddl/lib/libtpool/tests/libtpool_test.c:68: pthread_barrier_wait(&barrier) != 0

FAILED:  sys.netinet.fibs_test.same_ip_multiple_ifaces_fib0

Error Message:
atf-check failed; see the output of the test for details