On Fri, Feb 7, 2014 at 5:23 PM, John Baldwin <jhb at freebsd.org> wrote: > On Friday, February 07, 2014 11:08:33 am Alfred Perlstein wrote: > The actual data used for I/O does not belong to the uio. > mbufs, on the other hand, store packet data. Thanks, it is very clear now. Luca