kphysm_del_span
extern int kphysm_del_span(memhandle_t, pfn_t base, pgcnt_t npgs);
err = kphysm_del_span(*mhp, base, npgs);
err = kphysm_del_span(*mhp, base, npgs);
err = kphysm_del_span(*mhp, base, npgs);
if ((errs = kphysm_del_span(handle, base, npgs)) != KPHYSM_OK) {
if ((rv = kphysm_del_span(mh, base, npgs)) != KPHYSM_OK) {