We (LSB) are seeing a number of failures of the gtkvts tests against 2.17.x and up. I've done some patch work on a number of the tests and have things down with 2.18.x to just these two, which are showing up fairly consistently across distributions. In short, the test(s) tried to create GtkBox and GtkTable widgets using large values for either padding or row spacing, and end up crashing with the message I mention in the summary on the console.

ref:
http://bugs.linuxbase.org/show_bug.cgi?id=2700#c11
http://bugs.linuxbase.org/show_bug.cgi?id=2700#c12

test source:
http://bzr.linux-foundation.org/loggerhead/lsb/devel/desktop-test/annotate/head%3A/lsb-gtkvts/src/tests/functions/Widgets/GtkBox.inp
http://bzr.linux-foundation.org/loggerhead/lsb/devel/desktop-test/annotate/head%3A/lsb-gtkvts/src/tests/functions/Widgets/GtkTable.inp

It would be good to get an opinion as to whether this is a valid issue or not. I don't really see anything in the spec that requires such large values to work, and they don't really seem practical. Perhaps when the tests were written there was some reason to have these in place to catch regressions of some sort.