Trying to catch up with my delays, I have released the OpenGL Samples Pack 4.4.0.0 too quickly. It resulted in many issues that the new 4.4.0.1 release is mostly fixing.
Unfortunately, some Linux issues remain. If someone is interested to maintain the Linux port, I'll be glade! ;)
I have updated September 2013 OpenGL drivers status as I seriously overlook the resolution of bugs of old OpenGL samples. Intel scores an impressive 100% success without workaround for all the samples from 3.2 to 4.1.
AMD, Intel, Mesa and NVIDIA are all supporting KHR_debug but unfortunately Apple remains behind. Robert Menzel wrote an article to simulate KHR_debug that will help dealing with this issue. It's amazing to see OpenGL debugging giving up its status of a privilege for a few.