FreeBSD-main-amd64-test - Build #22101 - Still Unstable

FreeBSD-main-amd64-test - Build #22101 (1c7084fe5612f179517994becb24a4d8f7a23cbe) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22101/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22101/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/22101/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)

25c54b848e175916d44daf85a62244d50e45bd77 by schweikh:
Reference correct section for free(3).

ed5e7fb16c01613bb23ed6992957ece990d6a48b by schweikh:
There's no PEM(3) anywhere around; delete reference.

298c7c5165217e4ecfc1b49785465918ad0865c2 by mjg:
zfs: don't access nameidata unless namei succeeded

1c7084fe5612f179517994becb24a4d8f7a23cbe by mjg:
vfs: clean up parse_mount_dev_present



The failed test cases:

4 tests failed.
FAILED:  sys.netpfil.pf.killstate.id

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

FAILED:  sys.netpfil.pf.killstate.v4

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

FAILED:  sys.posixshm.posixshm_test.largepage_mmap

Error Message:
Empty test result or no new line

FAILED:  sys.netpfil.pf.killstate.label

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