../source/amiga.ariadne-fix.diff contains a patch you should apply (using the patch program) to your kernel sources before you build your kernel. This should fix the "Ariadne panic" problem (some people where experiencing kernel panics when doing lots of Ariadne traffic, with 1.3 kernels). Note that in miniroot/ and in kernel/ you'll find versions of the kernel and the miniroot that were built from fixed sources, so you dont need to rebuild your kernel just to get that fix, if you need it.