FreeBSD-main-amd64-test - Build #20550 - Unstable

FreeBSD-main-amd64-test - Build #20550 (e7c54421628231650d61edd90b271e6b5e322e36) - Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20550/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20550/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/20550/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)

4cf9f5d807a7767a2ec6113c99bbba024d08b489 by kib:
vm_object: restore handling of shadow_count for all type of objects

0b8643eaf6e787bac9c33c2ff03d5524cdfd7239 by kib:
vmmeter(): Fix detection of the named swap objects

e7c54421628231650d61edd90b271e6b5e322e36 by kib:
amd64: micro-optimize vptopte()/vtopde() further



The failed test cases:

2 tests failed.
FAILED:  sys.fs.fusefs.last_local_modify.main

Error Message:
Returned non-success exit status 1

FAILED:  sys.kern.ptrace_test.ptrace__follow_fork_both_attached_unrelated_debugger

Error Message:
/usr/src/tests/sys/kern/ptrace_test.c:603: WIFSTOPPED(status) not met