When looking through my system logs there are messages similar to the following:
nikal: module license 'Copyright (c) 2002-2005 National Instruments Corporation. All Rights Reserved. Any and all use of the copyrighted materials is subject to the then current terms and conditions of the applicable license agreement, which can be found at <http://www.ni.com/linux/>.' taints kernel.
What does the "taints kernel" message mean?