[Bug 83514] New: [BDW regression]Cannot start gnome-session

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83514

          Priority: medium
            Bug ID: 83514
          Assignee: idr at freedesktop.org
           Summary: [BDW regression]Cannot start gnome-session
        QA Contact: intel-3d-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jianx.zhou at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: Drivers/DRI/i965
           Product: Mesa

Platform:BDW
Libdrm:(master)libdrm-2.4.56-21-g8c2ae1695913990cbe6c6a8aa294f354eba33bd0
Mesa:(master)504f5f9d1a4fb5a0ddc8a5d0bf73fd6eba96b1d0
Xserver:(master)xorg-server-1.16.0-152-g3a51418b2db353519a1779cf3cebbcc9afba2520
Xf86_video_intel:(master)2.99.914-89-gaa10f480c566b8523cdd49b3e23f64b7b9625987
Cairo:(master)8e11a42e3e9b679dce97ac45cd8b47322536a253
Libva:(master)c356638098e55453d2fac8bbb92eafc8cc32d6f4
Libva_intel_driver:(master)865f288d6821dfea5a9dc2a0525eba69ef786b23
Kernel:(drm-intel-nightly)4144c90b76dfe6eaa2205ac947090786b5091cff

Bug detailed description:
-------------------------------------------------
Cannot start gnome-session on BDW,this issue doesn't exist on IVB/HSW/BYT-M.
It's X11R7 regression,i have tried compiling the Mesa/xf86/server/Cairo
component,but not found which component problem,so can't bisect it,I know that
the good commit(X11R7 RAW X:2014-08-24) and bad commit(X11R7 RAW X:2014-08-25).
please see dmesg.log and Xorg.0.log and gnome-session_bad_output_log.log


Reproduce step:
----------------------
1. xinit&
2. gnome-session

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