if (VTNET_ETHER_ALIGN !=3D 0 && sc->vtnet_hdr_size % 4 =
=3D=3D 0)
>                         m_adj(m, VTNET_ETHER_ALIGN);
> +
> +               err =3D bus_dmamap_create(sc->vtnet_rx_dmat, 0, &dmap);
> +               if (err) {
> +                       printf("Failed to create dmamap, err :%d\n",
> +                           err);
> +                       m_freem(m);
> +                       return (NULL);
>                 }
> +
> +               nsegs =3D 0;
> +               err =3D bus_dmamap_load_mbuf_sg(sc->vtnet_rx_dmat, dmap, =
m, segs,
> +                   &nsegs, BUS_DMA_NOWAIT);

Where is the bus_dmamap_unload and bus_dmamap_destroy for the rx bufs?

Ryan