# Test Case: FreeBSD system namespace subset

**Test ID**: TC082-system-namespace-subset
**Fixture**: `basic.erofs`, `/acl-unordered`

## Objective

Verify POSIX ACL exposure in FreeBSD namespace `system` and isolation from
namespace `user`.

## Manual steps

```sh
lsextattr system /mnt/repo22-g4/acl-unordered
getextattr -qq -x system posix_acl_access /mnt/repo22-g4/acl-unordered
getfacl -n /mnt/repo22-g4/acl-unordered
truss -o /tmp/tc082.truss getextattr -qq user posix_acl_access \
  /mnt/repo22-g4/acl-unordered
grep extattr_get_file /tmp/tc082.truss
```

## Expected results

Raw ACL starts with little-endian version 2; `getfacl` shows named users 3002
then 2002. The user-namespace request returns `ENOATTR` (87). Clean up.