/NONMEMORY_PFN [=option]

    The /NONMEMORY_PFN qualifier causes SDA to display only page
    table entries that are in neither the system's private memory
    nor in Galaxy-shared memory. Use of /NONMEMORY_PFN implies
    /PAGE_TABLES.

    The /NONMEMORY_PFN qualifier allows two optional keywords,
    READONLY and WRITABLE. If neither keyword is given, all relevant
    pages are displayed. If you specify READONLY, only pages marked
    for no write access are displayed. If you specify WRITABLE, only
    pages that allow write access are displayed. For example, SHOW
    PROCESS ALL/PAGE_TABLE=ALL/NONMEMORY_PFN=WRITABLE would display
    all process pages (for all processes) whose protection allows
    write, but which map to PFNs that are in neither the system's
    private memory nor Galaxy-shared memory.