https://bugs.freedesktop.org/show_bug.cgi?id=99843
--- Comment #1 from Nicolai Hähnle nhaehnle@gmail.com --- Interesting, thanks for the report.
Is this really an issue of having separate VBOs, or does the issue also occur when you use separate draw calls with a single VBO? Or a single draw call?
Do you have a simple program that reproduces this? Alternatively, an apitrace is likely to help.