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+Random list of problems with i915g:
+- Dies with BadDrawable on GLXFBconfig changes/destruction. Makes piglit totally
+ unusable :( Upgrading xserver helped here, it doesn't crash anymore. Still
+ broken, it doesn't update the viewport/get new buffers.
+- Tends to hang the chip after a few minutes of openarena. Looks tiling related,
+ at the last frame rendered has tiling corruption over the complete frame.
+- Kills the chip in 3D_PRIMITIVE LINELIST with mesa-demos/fbotexture in
+ wireframe mode.
+- Tiling is funny: If unlucky, it renders/samples all black. No clue yet what's
+ going on. Seems to depend on tiny details like whethever the sampler
+ relocation is fenced/unfenced (broken _with_ fenced reloc using tiling bits!).
+- Y-tiling is even more fun. i915c doesn't use it, maybe there's a reason?
+ Texture sampling from Y-tiled buffers seems to work, though (save above
+- Review buffer usage/cache domain handling in the winsys. Related: vbo cache
+ coherency is bunk: openarena tends to have a bunch of flatshaded triangles
+ popping up all over the screen.
+- Need to validate buffers before usage. Currently do_exec on the batchbuffer
+ can fail with -ENOSPC.
+Other bugs can be found here: