FreeBSD-main-amd64-test - Build #20055 - Still Unstable

FreeBSD-main-amd64-test - Build #20055 (fa5af3219fab0b1640dba02b8201a536171a4ba4) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20055/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20055/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20055/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)

d90c3b51cc3a15235054a5823928e8b654697768 by jrtc27:
xdma: Fix -Wunused-but-set-variable warnings

434cb1c4a6316d0966b5cd029e6ae40d5b944406 by jrtc27:
riscv: Fix PLIC -Wunused-but-set-variable warnings

fa5af3219fab0b1640dba02b8201a536171a4ba4 by jrtc27:
xdma: Fix another -Wunused-but-set-variable warning previously missed



The failed test cases:

5 tests failed.
FAILED:  lib.libregex.exhaust_test.regcomp_too_big

Error Message:
Empty test result or no new line

FAILED:  sys.netpfil.pf.pfsync.defer

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

FAILED:  sys.netpfil.pf.forward.v6

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