FreeBSD-main-amd64-test - Build #20048 - Still Unstable

FreeBSD-main-amd64-test - Build #20048 (793c74e415abf3c7e44c2df1472fdffde620f8e4) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20048/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20048/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20048/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)

b8cacb38989a9abe26348052fc477319f26c52cb by imp:
mips: Remove mips as a recognized build target.

8c3149be5486e999c7d08585810e4dda5e3c20a3 by mjg:
amd64: plug set-but-not-used vars in pmap

b9723c5ba9731f1d628d37a624e67aaff9ff0209 by mjg:
amdtemp: plug set-but-not-used vars

d8664f6e2fa1938258de0a0734b50c364a04132b by mjg:
et: plug set-but-not-used vars

cf8e3ea23f8275dab1f2e9ef3649e0fb3c834f7b by mjg:
pcm: plug set-but-not-used vars

81f64bc0dbf588c5b20d29dbdef14e008fb7ef40 by mjg:
firewire: plug set-but-not-used vars

793c74e415abf3c7e44c2df1472fdffde620f8e4 by mjg:
arm/freescale: remove FBIOSCURSOR



The failed test cases:

6 tests failed.
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.posixshm.posixshm_test.largepage_mprotect

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

FAILED:  sys.netpfil.pf.forward.v6

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

FAILED:  sys.netpfil.pf.pfsync.defer

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

FAILED:  sys.netpfil.pf.set_tos.v6

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

FAILED:  sys.netpfil.pf.killstate.v6

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