[Bug 103537] i965: Shadow of Mordor broken since commit 379b24a40d3d34ffdaaeb1b328f50e28ecb01468 on Haswell

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103537

            Bug ID: 103537
           Summary: i965: Shadow of Mordor broken since commit
                    379b24a40d3d34ffdaaeb1b328f50e28ecb01468 on Haswell
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: d.spitznagel at goodbytez.de
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Hello Mesa team,

today I wanted to try out the Intel disk shader cache which landed some hours
ago in mesa master with Shadow of Mordor.
I started the game after some months not playing it and was surprised by a
broken start menu (Talion was also not visible). The menu was not responding
and I hit ALT+F4 several times.
Some seconds later SoM exited.
dmesg showed...

15802.984693] drm/i915: Resetting chip after gpu hang
[15813.032755] drm/i915: Resetting chip after gpu hang
[15822.024888] drm/i915: Resetting chip after gpu hang
[15832.008993] drm/i915: Resetting chip after gpu hang
[15842.025063] drm/i915: Resetting chip after gpu hang
[15854.025184] drm/i915: Resetting chip after gpu hang
[15865.033352] drm/i915: Resetting chip after gpu hang

Bisecting leads me to...

379b24a40d3d34ffdaaeb1b328f50e28ecb01468 is the first bad commit
commit 379b24a40d3d34ffdaaeb1b328f50e28ecb01468
Author: Timothy Arceri <tarceri at itsqueeze.com>
Date:   Thu Sep 7 23:29:25 2017 +1000

    i965: make use of nir linking

    For now linking is just removing unused varyings between stages.

    shader-db results BDW:

    total instructions in shared programs: 13198288 -> 13191693 (-0.05%)
    instructions in affected programs: 48325 -> 41730 (-13.65%)
    helped: 473
    HURT: 0

    total cycles in shared programs: 541184926 -> 541159260 (-0.00%)
    cycles in affected programs: 213238 -> 187572 (-12.04%)
    helped: 435
    HURT: 8

    V2:
    - lower indirects on demoted inputs as well as outputs.

    Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

:040000 040000 90e4aaacaa7a00a32657e23fb0ca89dec26d2976
169fe3798b397c71851aa4ca9b7cb381254698a1 M      src

Could someone please look into this?

Mesa 17.2.4 works.

My Specs:
root at pc1:/home/darius# glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Haswell Desktop 
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.4.0-devel
(git-8d8b9d11c9)
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 17.4.0-devel (git-8d8b9d11c9)
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 17.4.0-devel
(git-8d8b9d11c9)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions:

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