aarch64 lib32 vs. armv7 mdconfig behavior: "mdconfig: ioctl(/dev/mdctl): Inappropriate ioctl for device"

Not via a chroot'd context, but using the files from a
directory tree that allows an armv7 chroot:

# /usr/obj/DESTDIRs/main-CA7-chroot/sbin/mdconfig -s40m
mdconfig: ioctl(/dev/mdctl): Inappropriate ioctl for device

This sort of thing messes up the operation of the likes
of the /usr/tests/sbin/growfs/legacy_test logic:

#! /usr/local/bin/perl
# $FreeBSD$

use strict;
use warnings;
use POSIX;
use Test::More tests => 19;
use Fcntl qw(:DEFAULT :seek);
. . .
SKIP: {
    skip "Cannot test without UID 0", 19 if $<;

    chomp(my $md = `mdconfig -s40m`);
    like($md, qr/^md\d+$/, "Created $md with size 40m") or die;
    $unit = substr $md, 2;
. . .


Other ioctl complaints:

sys/aio/aio_test:md_kq  ->  failed: ioctl MDIOCATTACH failed: Inappropriate ioctl for device
sys/aio/aio_test:md_poll  ->  failed: ioctl MDIOCATTACH failed: Inappropriate ioctl for device
sys/aio/aio_test:md_signal  ->  failed: ioctl MDIOCATTACH failed: Inappropriate ioctl for device
sys/aio/aio_test:md_suspend  ->  failed: ioctl MDIOCATTACH failed: Inappropriate ioctl for device
sys/aio/aio_test:md_thread  ->  failed: ioctl MDIOCATTACH failed: Inappropriate ioctl for device
sys/aio/aio_test:md_waitcomplete  ->  failed: ioctl MDIOCATTACH failed: Inappropriate ioctl for device
sys/aio/aio_test:vectored_md_poll  ->  failed: ioctl MDIOCATTACH failed: Inappropriate ioctl for device


For reference:

# uname -apKU
FreeBSD CA78C-WDK23-ZFS 14.0-CURRENT FreeBSD 14.0-CURRENT aarch64 1400093 #5 main-n264334-215bab7924f6-dirty: Wed Jul 26 02:13:44 PDT 2023     root@CA78C-WDK23-ZFS:/usr/obj/BUILDs/main-CA78C-nodbg-clang/usr/main-src/arm64.aarch64/sys/GENERIC-NODBG-CA78C arm64 aarch64 1400093 1400093


===
Mark Millard
marklmi at yahoo.com