Hello list, Let's assume that we've pinned the pages of process A, and our device buffers the received data, and when these data reach PAGE_SIZE, device write them to a single page, let's say page B. If the destination segment on the user-space fits also in a single page,let's say page C, can we unmap page C from our process table, and map (on the same virtual address) the page B. Best Regards, Stavros Passas -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ