uma_zsecond_create
pool->zone = uma_zsecond_create(pool->name, NULL,
zone_pack = uma_zsecond_create(MBUF_PACKET_MEM_NAME, mb_ctor_pack,
uma_zone_t uma_zsecond_create(const char *name, uma_ctor ctor, uma_dtor dtor,
zone = uma_zsecond_create(name, pbuf_ctor, pbuf_dtor, NULL, NULL,