FWIW, on an i686 I get the attached output from funit test run: Tests run: 291, Failures: 25, Errors: 4 Versions in use: kernel-2.6.19-1.2911.fc6 glibc-2.5-10.fc6 frysk-0.0.1.2007.02.07.rh1-1.fc6
Created attachment 148039 [details] funit test run output
The known FC-6 failures are being tracked up stream with this bug: http://sourceware.org/bugzilla/show_bug.cgi?id=2654 They range from a few testsuite warts, through to some serious kernel bugs. Each individual bug (one per failure) contains more information, and possibly pointers to where its been filed against a vendor os.
Run /usr/lib/frysk/fsystest to run a set of tests that exercise the kernel and compiler.