FreeBSD-main-amd64-test - Build #24199 - Still Unstable

FreeBSD-main-amd64-test - Build #24199 (fbb3f13b15539f223e40ff606744dc8ba1d6569f) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24199/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24199/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24199/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)

fbb3f13b15539f223e40ff606744dc8ba1d6569f by dchagin:
linux(4): Actually delete linux_sysproto.h



The failed test cases:

4 tests failed.
FAILED:  sys.fs.fusefs.last_local_modify.main

Error Message:
Returned non-success exit status 1

FAILED:  sys.netinet6.frag6.frag6_19.frag6_19

Error Message:
Global IPv6 statistics do not match: 19 != 20

FAILED:  usr.bin.file.file_test.contrib_file_tests

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

FAILED:  sys.fs.tmpfs.times_test.empty

Error Message:
Incorrect atime