MDP_STEP2
if (p->p_md.md_flags & MDP_STEP2) {
p->p_md.md_flags &= ~MDP_STEP2;
if (p->p_md.md_flags & (MDP_STEP1|MDP_STEP2))
p->p_md.md_flags |= MDP_STEP2;
if (p->p_md.md_flags & (MDP_STEP1|MDP_STEP2)) {