kernel sym...

hi i run suse 9.1 i see on the web a kernel named: kernel-syms-2.6.8 this kernel size is very low... is it a patch? it know with a syms kernel we don't need to recompile everytime the modules when we compile the kernel.... are there an option in the kernel for the syms? are there a real kernel syms and not a patch? what is need to install to have a syms kernel? thanks -- La boîte à prog http://www.laboiteaprog.com