Still experiencing this with kernel 3.17-1 and latest Mesa from Manjaro.

Experiencing it even in Enlightment e17 (version e19) environiment, when
hardware OpenGL compositing is selected. If I select software compositing, then
this issue disappears.

Also, in KDE 4.14 I get random kernel hardlocks and freezes, I never had. I
wonder if this issue is connected.