
{    The purpose of this request is to set a system flag in each child task
{  of the executing task.
{
{        PMP$FLAG_ALL_CHILD_TASKS (FLAG, STATUS)
{
{  FLAG: (input) This parameter specifies the system flag to be set in each
{        child task.
{
{  STATUS: (output) This parameter specifies the request status.
{
{       WARNING:  This procedure uses a ring 1 interlock.  It must not
{         be called by signal handlers (or their subordinates) which
{         may interrupt ring 1 processes.
{
