[Bug 77702] New: [i965 Bisected]Piglit spec/NV_conditional_render_blitframebuffer fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77702

          Priority: high
            Bug ID: 77702
                CC: idr at freedesktop.org
          Assignee: anuj.phogat at gmail.com
           Summary: [i965 Bisected]Piglit
                    spec/NV_conditional_render_blitframebuffer fails
        QA Contact: intel-3d-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: Drivers/DRI/i965
           Product: Mesa

System Environment:
--------------------------
Platform: Ironlake
Libdrm:       
(master)libdrm-2.4.53-6-gd4083dc762a2974c35ecd16be995272bbb6d57b4
Mesa:        (master)ba6dcb3c2b8f516b120f591144bf6c3751f0e3f9
Xserver:   
(master)xorg-server-1.15.99.902-20-gc7011249d2abe6cc7af82ee4b79d8f6873444707
Xf86_video_intel:(master)2.99.911-89-g08e71e1820d6fcb6829b4ebd360beadc1f250295
Libva:        (staging)5e10a246287fa2dd3fae2bf756a5b33087cc097c
Libva_intel_driver:(staging)782b8afdda14f000874d8acf51c3e8c490d55773
Kernel:    (drm-intel-nightly)1e771b84e47085ef9b6efea1321e7cb5a8b2c06

Bug detailed description:
-----------------------------
It fails on i965 platforms with mesa master branch, and works well on 10.1
branch.
Bisect shows:1d350b9e228462390b1883abace24c15d4741932 is the first bad commit.
commit 1d350b9e228462390b1883abace24c15d4741932
Author:     Anuj Phogat <anuj.phogat at gmail.com>
AuthorDate: Fri Apr 4 16:49:19 2014 -0700
Commit:     Anuj Phogat <anuj.phogat at gmail.com>
CommitDate: Thu Apr 17 10:26:39 2014 -0700

    i965: Add glBlitFramebuffer to commands affected by conditional rendering

    Fixes failures in Khronos OpenGL CTS test conditional_render_test9

    Cc: <mesa-stable at lists.freedesktop.org>
    Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
    Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

output:
Probe color at (0,16)
  Expected: 0.000000 1.000000 0.000000 0.000000
  Observed: 1.000000 0.000000 0.000000 0.000000
PIGLIT: {'result': 'fail' }

Reproduce steps:
---------------------------- 
1. xinit
2. ./bin/nv_conditional_render-blitframebuffer -auto

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