FreeBSD-main-amd64-test - Build #26665 - Still Unstable

FreeBSD-main-amd64-test - Build #26665 (d17cbe46983c08ba0567b0ffd71434abd35aa205) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26665/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26665/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/26665/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)

01addd846c64fc2c8be610d83bfdc84ddb57f2ec by glebius:
gone_in: make it __printflike()

eabb9f600001cc19943965b84d492936a5c59ebd by glebius:
gone_in: enforce printing only once

d17cbe46983c08ba0567b0ffd71434abd35aa205 by glebius:
sendfile: retire SF_SYNC



The failed test cases:

5 tests failed.
FAILED:  lib.libcasper.services.cap_fileargs.fileargs_test.fileargs__open_realpath

Error Message:
/usr/src/lib/libcasper/services/cap_fileargs/tests/fileargs_test.c:733: test_file_open(fa, files[i], &fd) == 0 not met

FAILED:  lib.libcasper.services.cap_fileargs.fileargs_test.fileargs__open_write

Error Message:
/usr/src/lib/libcasper/services/cap_fileargs/tests/fileargs_test.c:350: test_file_open(fa, files[i], &fd) == 0 not met

FAILED:  sys.netpfil.pf.mbuf.inet6_in_mbuf_len

Error Message:
1 != 2 (1 != 2)

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