[Bug 109561] [regression, bisected] code re-factor causing games to stutter or lock-up system

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Bug ID 109561
Summary [regression, bisected] code re-factor causing games to stutter or lock-up system
Product Mesa
Version git
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component Drivers/Gallium/radeonsi
Assignee dri-devel@lists.freedesktop.org
Reporter t_arceri@yahoo.com.au
QA Contact dri-devel@lists.freedesktop.org

The following commit cause bad stuttering in the Batman Arkham City benchmark
(note when testing this game is 32bit). It also causes No Mans Sky to freeze my
system.

Link to No Mans Sky api trace below. Needs the following environment variables
set when running apitrace:

force_glsl_extensions_warn=true
allow_glsl_layout_qualifier_on_function_parameters=true

https://drive.google.com/open?id=1xFl7Uzfr75aODC0ljP8hC5OYRxgtuCan

commit e0f0d3675d462aad4ca30e4383a3530d46e6e85d
Author: Nicolai Hähnle <nicolai.haehnle@amd.com>
Date:   Tue Sep 18 15:52:17 2018 +0200

    radeonsi: factor si_query_buffer logic out of si_query_hw

    This is a move towards using composition instead of inheritance for
    different query types.

    This change weakens out-of-memory error reporting somewhat, though this
    should be acceptable since we didn't consistently report such errors in
    the first place.

    Reviewed-by: Marek Olšák <marek.olsak@amd.com>


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