Hi, the following patches are from the PREEMPT_RT queue. It is mostly about disabling interrupts/preemption which leads to problems. Unfortunately DRM_I915_LOW_LEVEL_TRACEPOINTS had to be disabled because it acquires locks from within trace points. I tested it on a SandyBridge with built-in i915 by using X, OpenGL and playing videos without noticing any warnings. However, some code paths were not entered.
Sebastian
