FreeBSD-main-amd64-test - Build #24333 - Still Unstable

FreeBSD-main-amd64-test - Build #24333 (bd80263606d73c0391d3fa8a156fcca89a821810) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24333/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24333/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/24333/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)

346134f19aa9ba38a0384244609e2bcd4f7838f4 by markj:
kmsan: Correct the origin address in kmsan_shadow_check()

bd80263606d73c0391d3fa8a156fcca89a821810 by markj:
pfsync: Avoid transmitting uninitialized bytes in pfsync_sendout()



The failed test cases:

1 tests failed.
FAILED:  sys.netinet6.frag6.frag6_19.frag6_19

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