https://bugs.freedesktop.org/show_bug.cgi?id=57531
--- Comment #3 from Michel Dänzer michel@daenzer.net --- Some piglit tests are about allocating as large textures as possible, which can result in such intermittent allocation failures. It might be feasible to handle this more gracefully in userspace, but otherwise it should be mostly harmless, assuming there are no other, real problems associated with it.