FreeBSD-main-amd64-test - Build #22796 - Still Unstable

FreeBSD-main-amd64-test - Build #22796 (4883f347f6ed9a61f9789a3842077580250ebf44) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22796/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22796/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22796/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)

d1ea5017141ffecdb7ce97a3d97b27a6aabf8c4a by imp:
stand: Separate base and cli parts of nvstore

d38d8a4c4e9a3c4667307ac2163007ff193040b0 by imp:
stand/ofw: dev can't be NULL here

5740057b4388f116717b9614cd54cf2c755e6e7d by imp:
stand/uboot: Explain why we test for NULL here

5385c7e13b06cb42a28bbf8c0d910b0c2ffddec7 by imp:
stand/zfs: Fix memory leaking on error cases

1a13008e9874748958a3415a3d0c34b95acbf2e2 by imp:
kboot: Rework hostdisk.c to allow easier ZFS support.

cc82c650a72fcdde255b023703a9b214a81254ec by imp:
kboot: Add ZFS support to hostdisk

f20ecce33a2a9a992fb267edf02edaa6eb9178b3 by imp:
kboot: Add support for ZFS volumes

42e37d8caf9da4628734f0c44c989583873b3ae6 by imp:
kboot: Add ZFS support build glue

4f3be6b8d94a388ce7ae239c785ea447d0adbf48 by imp:
kboot: Fetch hostfs_root and bootdev from the environment

b7ecfa195f46da4a08a0cb5b399c8bc69bff225a by imp:
kboot: Add hostdisk override

eb1795782cfc43523345f78737cc22277cea5056 by imp:
kboot: Use standard set_currdev

92e978439f0c3139775ad96d412959f5a74b17b6 by asomers:
cal: don't print terminal control characters unless stdout is a TTY

4883f347f6ed9a61f9789a3842077580250ebf44 by imp:
stand: dev can't be NULL in default_prasedev



The failed test cases:

6 tests failed.
FAILED:  lib.libc.time.mktime_test.timegm_epoch

Error Message:
/usr/src/contrib/netbsd-tests/lib/libc/time/t_mktime.c:98: Expected errno 0, got 84, in t == (time_t)0

FAILED:  sys.net.if_tun_test.235704

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

FAILED:  usr.sbin.etcupdate.preworld_test.main

Error Message:
Returned non-success exit status 1

FAILED:  sys.aio.aio_test.aio_socket_blocking_short_write

Error Message:
Test case body timed out

FAILED:  sys.aio.aio_test.aio_socket_blocking_short_write_vectored

Error Message:
Test case body timed out

FAILED:  sys.aio.aio_test.aio_socket_short_write_cancel

Error Message:
/usr/src/tests/sys/aio/aio_test.c:1396: aio_error(&iocb) == EINPROGRESS not met