FreeBSD-stable-14-amd64-test - Build #824 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #824 (96b72aa66bc920b2c2d741ccad425a6dec0ccc2b) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/824/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/824/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/824/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)

8e9f1e10c624e289212a9244c317b61ea8195a7e by kib:
amd64 pmap: assert and explain why pmap_qremove() is safe WRT

7302cdd34994fe3db06111f5c73e63a85bb9ef34 by kib:
amd64: switch pmap_map_io_transient() to use pmap_kenter_attr()

057da12eeaa6700793340ffcfede620135b7f540 by kib:
kern___realpathat(): do not copyout past end of string

96b72aa66bc920b2c2d741ccad425a6dec0ccc2b by kib:
kern___realpathat(): honor uio_seg argument



The failed test cases:

5 tests failed.
FAILED:  sys.kern.sigsys.sigsys_test_off

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  sys.kern.sigsys.sigsys_test_on

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  usr.bin.grep.grep_test.recurse_symlink

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

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

Error Message:
Returned non-success exit status 255

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly