PG_UNSAFE_CLEAR
memory_bm_free(bm1, PG_UNSAFE_CLEAR);
memory_bm_free(bm1, PG_UNSAFE_CLEAR);
memory_bm_free(bm2, PG_UNSAFE_CLEAR);
memory_bm_free(safe_highmem_bm, PG_UNSAFE_CLEAR);
free_image_page(buffer, PG_UNSAFE_CLEAR);
free_image_page(buffer, PG_UNSAFE_CLEAR);
memory_bm_free(&tmp, PG_UNSAFE_CLEAR);
free_image_page(buf, PG_UNSAFE_CLEAR);
free_zone_bm_rtree(zone, PG_UNSAFE_CLEAR);
memory_bm_free(bm, PG_UNSAFE_CLEAR);