Guillaume, Looking at all of the links which you gave, it seems pretty obvious that (a) the project is dead/abandonware --- it was originally done for the 2.6.9 kernel and apparently hasnt been updated in over two years. Did you bother to look at the links? What sort of comments were you looking for/expecting? In fact, there is a much more recent implementation of this functionality here: http://web.mit.edu/ksplice/ Note that ksplice does not need any modifications to the base Linux Kernel in order to function. - Ted