FreeBSD-main-amd64-test - Build #20135 - Still Unstable

FreeBSD-main-amd64-test - Build #20135 (3b26e5a453dfd7fa96368a745e8f66b3ed911a9e) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20135/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20135/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20135/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)

3b26e5a453dfd7fa96368a745e8f66b3ed911a9e by sjg:
Update dirdeps.mk et al to 20211212 versions



The failed test cases:

3 tests failed.
FAILED:  sys.posixshm.posixshm_test.largepage_mprotect

Error Message:
/usr/src/tests/sys/posixshm/posixshm_test.c:1669: mmap(2097152 bytes) failed; error=28

FAILED:  lib.libnv.nvlist_send_recv_test.nvlist_send_recv__send_many_fds__dgram

Error Message:
/usr/src/lib/libnv/tests/nvlist_send_recv_test.c:457: nvl != NULL not met

FAILED:  sys.netmap.ctrl-api-test.main

Error Message:
Returned non-success exit status 255