[Bug 82846] New: [BDW/HSW Bisected] Gpu hang when running unigine-demos

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Aug 19 23:44:04 PDT 2014


          Priority: medium
            Bug ID: 82846
          Assignee: idr at freedesktop.org
           Summary: [BDW/HSW Bisected] Gpu hang when running unigine-demos
        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/HSW
Libdrm: (master)libdrm-2.4.56-8-gd9ce09de12131fa8c5ff2d7c2dbd6b61d8a5fd14
Mesa: (master)a4359bcaa599291ef1588376a419a0bcfbd02396
Cairo: (master)932548ef25864958ef966ffe83e7c945c3ff3cd4
Libva: (master)acfcd5f0637a951d50c5112c7dfbd46f1d0dcdb3
Libva_intel_driver: (master)f3f49f2f0e6b3669d9b09341a11cf0b96e138674
Kernel: (drm-intel-nightly)git-2b6e6b

Bug detailed description:
Gpu hang when running unigine-demos on BDW/HSW, this issue doesn’t exist on
BYT/IVB.The problem exist both on gnome-sesssion and Raw X.

It is Mesa regression, bisected result show the first bad commit is:
commit 45eb06566830eb49551c27262cdd936bf42ec922
Author:     Matt Turner <mattst88 at gmail.com>
AuthorDate: Sun Aug 17 00:45:27 2014 -0700
Commit:     Matt Turner <mattst88 at gmail.com>
CommitDate: Mon Aug 18 18:18:50 2014 -0700
    i965: Enable instruction compaction on Gen8+.

Please see dmesg.log and output.log and Xorg.0.log

Reproduce steps:
1. xinit& 
export force_glsl_extensions_warn=true
vblank_mode=0 ./bin/Tropics -video_app opengl -data_path ../ -sound_app null
-system_script tropics/unigine.cpp -engine_config ../data/unigine.cfg
-video_mode -1 -video_fullscreen 1 -video_multisample 0 -extern_define PHORONIX
-video_width 1920 -video_height 1080

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