[Mesa-dev] [Bug 72281] New: [bisected] Eufloria HD crash on start

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72281

          Priority: medium
            Bug ID: 72281
          Keywords: regression
                CC: eric at anholt.net
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: [bisected] Eufloria HD crash on start
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: pavel.ondracka at email.cz
          Hardware: Other
            Status: NEW
           Version: git
         Component: Mesa core
           Product: Mesa

Eufloria HD crash on start here with all tested drivers (llvmpipe, softpipe,
r300g). This is a regression introduced by:

e5885c119de1e508099cc1111e1c9f8ff00fab88 is the first bad commit
commit e5885c119de1e508099cc1111e1c9f8ff00fab88
Author: Eric Anholt <eric at anholt.net>
Date:   Fri Sep 20 10:13:32 2013 -0700

    mesa: Dynamically allocate the storage for program local parameters.

    The array was 64kb per struct gl_program, plus we statically stored a copy
    of one on disk for _mesa_DummyProgram.  Given that most struct gl_programs
    we generate are for GLSL shaders that don't have local parameters, this
    was a waste.

    Since you can store and fetch parameters beyond what the program actually
    uses, we do have to do a late allocation if necessary at
    GetProgramLocalParameter time.

    Reduces peak memory usage in the dota2 trace I made by 76MB (4.5%)

    Reviewed-by: Brian Paul <brianp at vmware.com>
    Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>


Program received signal SIGSEGV, Segmentation fault.
__memcpy_ia32 () at ../sysdeps/i386/i686/memcpy.S:74
74        rep
#0  __memcpy_ia32 () at ../sysdeps/i386/i686/memcpy.S:74
#1  0x00000001 in ?? ()
#2  0xb6336a15 in _mesa_ProgramLocalParameters4fvEXT (target=34336, index=1,
count=4, params=0x87c8f48) at main/arbprogram.c:551
#3  0x4e9b3dbc in ?? () from /usr/local/games/EufloriaHD/lib/libCgGL.so
#4  0x4e9afc6a in ?? () from /usr/local/games/EufloriaHD/lib/libCgGL.so
#5  0x4e9af055 in ?? () from /usr/local/games/EufloriaHD/lib/libCgGL.so
#6  0x4e987702 in ?? () from /usr/local/games/EufloriaHD/lib/libCgGL.so
#7  0x4e987819 in ?? () from /usr/local/games/EufloriaHD/lib/libCgGL.so
#8  0x4e9899ee in cgGLLoadProgram () from
/usr/local/games/EufloriaHD/lib/libCgGL.so
#9  0x081e85f8 in Coal::Shader::LoadBinary(char const*) ()
#10 0x081e7a06 in Coal::Win32Renderer::LoadShaderBinary(char const*, bool) ()
#11 0x080e64dd in Drawing::Drawing() ()
#12 0x080fb7c4 in EufloriaApp::Initialise() ()
#13 0x081db653 in Coal::App::Run() ()
#14 0x081579a5 in main ()

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