[Bug 84791] New: [BSW]Piglit spec_ARB_timer_query_timestamp-get fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84791

            Bug ID: 84791
           Summary: [BSW]Piglit spec_ARB_timer_query_timestamp-get fails
           Product: Mesa
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

System Environment:
--------------------------
Platform: BSW
Libdrm:    (master)libdrm-2.4.58-4-g00847fa48b83a85b0cb882594a12ed1511f780db
Mesa:    (master)16b53005a7df4249fecb6641af0934c32181fdea
Xserver:(master)xorg-server-1.16.0-386-g95a5b92e37f73f497d547fd91c543c16d2cc73de
Xf86_video_intel:(master)2.99.916-84-gec2b9ac81aed0d2dda2948171ca1c260184bf221
Libva:        (master)cdf8636d5fc5b1558570fede347e1599e0d6af3d
Libva_intel_driver:(master)f11176415ec26eb5960ba6841d2d9c22f2cabc60
Kernel:   (drm-intel-nightly)eabc0c8db15f9ba4d727aee5e0612a68cafe1ab5

Bug detailed description:
---------------------------
It fails on BSW with mesa master branch, works well on BDW.

output:
glGet overhead: 85 us
glQuery overhead: 471 us
Test: first glQuery, then glGet
old time = 15303414 us
new time = 0 us
old time > new time
PIGLIT: {"result": "fail" }

Reproduce steps:
-------------------------
1. xinit
2. bin/arb_timer_query-timestamp-get -fbo -auto

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