[Mesa-dev] [Bug 77263] New: [BDW GT3]System hangs while running glxgear with SNA

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77263

          Priority: medium
            Bug ID: 77263
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: [BDW GT3]System hangs while running glxgear with SNA
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: git
         Component: Drivers/X11
           Product: Mesa

Created attachment 97162
  --> https://bugs.freedesktop.org/attachment.cgi?id=97162&action=edit
dmesg

Platform: BDW GT3
BIOS: BDW-E1R1.86C.0069.R00.1403240209
CPU: D0 1.2GHz 2Cores/4Thread 3
KSC: v1.02
kernel: (drm-intel-nightly)1e64f527329663d8dd82f30ff5f5d01cb2407dae

Bug detailed description:
----------------------------
System hangs while running glxgear, this bug is able to find on latest
-next-queued(4b28a1f3ef55a3b0b68dbab1fe6dbaf18e186710) and
-fixes(bc104d1f10eb6001f1b1003a5a92066a1b03f080) too.

It works well on GT2, It works well with UXA.
the enveironment of GT2 device:
BIOS: BDW-E1R1.86C.0069.R00.1403240209
CPU: D0 1.8GHz 2Cores/4Thread 3
KSC: v1.16
It's first time to run test on BDW GT3.
Reproduce steps:
---------------------------- 
1. init &
2. glxgears &

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