System Environment:
--------------------------
Platform: HSW
Libdrm:         (master)libdrm-2.4.59-8-gccbb9aa887f992359335ecf2d26919b04e14e63f
Mesa:           (master)8030e269e911c4f90a44d9a77eb342dd2657d229
Xserver:         (master)xorg-server-1.17.0
Xf86_video_intel:  (master)2.99.917-94-g26ba2ba6e7169a099558092f31eaf97944cc3562
Libva:          (master)f9741725839ea144e9a6a1827f74503ee39946c3
Libva_intel_driver:     (master)9a20d6c34cb65e5b85dd16d6c8b3a215c5972b18
kernel: drm-intel-nightly/b4442ee4e150506cebeee72249efc566c5f14bbe(0209)

Bug detailed description:
---------------------------
It fails on HSW, Bisect shows is a Xf86_video_intel regression.

Bisect shows: db629a38342883176d58357fa014176c9e45115d is the first bad commit.
commit db629a38342883176d58357fa014176c9e45115d
Author:     Chris Wilson <chris@chris-wilson.co.uk>
AuthorDate: Wed Feb 4 09:34:14 2015 +0000
Commit:     Chris Wilson <chris@chris-wilson.co.uk>
CommitDate: Wed Feb 4 09:55:54 2015 +0000

    Allow runtime selection between DRI levels

    Rather than imposing a maximum DRI level at compile time by compiling
    out unwanted protocol handlers, default to limiting it at runtime so
    that we can switch between any level.

    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

output:
PIGLIT: {"result": "fail" }

==Reproduce steps==
---------------------------- 
1. xinit
2. ./bin/glx-create-context-current-no-framebuffer -auto -fbo