Yesterday I setup a xenofarm client at devel2.cuci.nl. It compiles 8.0 and 8.1 using an identical set of configure parameters.
Yet, looking at the results, it appears that 8.1 comes out clean through the testsuite, yet 8.0 has six persistent testsuite failures.
Case in point, look at this straight comparison:
http://pike.lysator.liu.se/generated/pikefarm/results/8.0/1128_64/verifylog.... http://pike.lysator.liu.se/generated/pikefarm/results/8.1/1127_64/verifylog....