FreeBSD-main-amd64-test - Build #28614 - Still Unstable

FreeBSD-main-amd64-test - Build #28614 (4f876cec30afca1a32d0187fc81d6c3ffd1abc30) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28614/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28614/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28614/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)

bd15d6ef126ee4c0eac931117f6bbbf6f9a3fc72 by des:
libarchive: Force GNU iconv compatibility on FreeBSD

a1e07f21dc7458d85bd0d04c294f0389d4591666 by jhb:
arm64: Adjust the kernel stack pointer at the end of fork_trampoline

d01e5afbbf9bc879e570f59dddc147c0efa8b990 by jhb:
arm64: Remove unneeded declaration from <machine/pcpu.h>

860aaecf1bb659d8cc6023aaa2d27273823faa75 by jhb:
amd64: Don't set an initial FPU state save size

187b46e1c4d761efe2e92f662d68c0f49cd04b44 by jhb:
cpu_fork: Remove redundant assignments to td_pcb and td_frame

59d67f2868b17dc6ae897a3afd3ec4d96301e160 by jhb:
amd64/i386: Remove dead code to clear XSAVE header

2893bb741b4bb67bde9ee27e5f18ea5715e3f0e9 by jhb:
cpu_thread_new_kstack: Introduce new MD callback

f7524d8fcbd76a432c163200a7c77ce964805beb by jhb:
amd64: Inline set_top_of_stack_td into cpu_thread_new_kstack

fce595344c51850a7113430c77e70c8777383a98 by jhb:
arm64 locore: Fix a comment typo: Of -> If

8b9023cfc1851a18518111d286ebd59b573008c1 by jhb:
sys: Add td_kstack_top inline helper function

dcae0f7d7aa67ed6ec6b8da5e1b444a828898595 by jhb:
sys: Consistently use ptoa() with td_kstack_pages

d0b10df718e3560cd041ba9ddb157591ac7fa886 by jhb:
arm64: Move pcb out of kstack into a new UMA zone

4f876cec30afca1a32d0187fc81d6c3ffd1abc30 by jhb:
riscv64: Move pcb out of kstack into a new UMA zone



The failed test cases:

1 tests failed.
FAILED:  sys.acl.00.main

Error Message:
1 of 4 tests failed