[Bug 31800] New: [r300g] src/mesa/state_tracker/st_mesa_to_tgsi.c:228:src_register: Assertion `index >= 0' failed.

[Bug 31800] New: [r300g] src/mesa/state_tracker/st_mesa_to_tgsi.c:228:src_register: Assertion `index >= 0' failed.

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=31800

           Summary: [r300g]
                    src/mesa/state_tracker/st_mesa_to_tgsi.c:228:src_regis
                    ter: Assertion `index >= 0' failed.
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: vlee@vmware.com


mesa: bb045d339b53f7ddd42bfca363e3d589b0ddcf20 (master)

chipset: RV530 71C5 (ATI Radeon X1600)
system architecture: i686
libdrm-dev: 2.4.21-1ubuntu2.1
kernel version: 2.6.35-22-generic
Linux distribution: Ubuntu 10.10 i386
Machine model: iMac4,1

Run piglit gls-fs-uniform-array-6 test.

$ ./bin/shader_runner tests/shaders/glsl-fs-uniform-array-6.shader_test
radeon: Successfully grabbed chipset info from kernel!
radeon: DRM version: 2.5.0 ID: 0x71c5 GB: 1 Z: 2
radeon: GART size: 509 MB VRAM size: 128 MB
radeon: HyperZ: NO
src/mesa/state_tracker/st_mesa_to_tgsi.c:228:src_register: Assertion `index >=
0' failed.


(gdb) bt
#0  0x01075fcb in _debug_assert_fail (expr=0x199b34d "index >= 0",
file=0x199b290 "src/mesa/state_tracker/st_mesa_to_tgsi.c", line=228,
function=0x199b8f8 "src_register")
    at src/gallium/auxiliary/util/u_debug.c:233
#1  0x01875ec5 in src_register (t=0xbff75548, file=PROGRAM_UNIFORM,
index=-1024) at src/mesa/state_tracker/st_mesa_to_tgsi.c:228
#2  0x01876386 in translate_src (t=0xbff75548, SrcReg=0x9d619f4) at
src/mesa/state_tracker/st_mesa_to_tgsi.c:316
#3  0x0187748c in compile_instruction (t=0xbff75548, inst=0x9d619e8) at
src/mesa/state_tracker/st_mesa_to_tgsi.c:664
#4  0x0187901e in st_translate_mesa_program (ctx=0x98cd438, procType=0,
ureg=0x9d26788, program=0x9d12428, numInputs=0, inputMapping=0xbff7688c,
inputSemanticName=0xbff769bc "\002", 
    inputSemanticIndex=0xbff7699c "\353Ս\001\060j", <incomplete sequence
\367\277>, interpMode=0xbff7680c, numOutputs=1, outputMapping=0xbff76904,
outputSemanticName=0xbff7697c "\001_\211\tt\205\244\t", 
    outputSemanticIndex=0xbff7695c "", passthrough_edgeflags=0 '\000') at
src/mesa/state_tracker/st_mesa_to_tgsi.c:1142
#5  0x0187a15b in st_translate_fragment_program (st=0x9909d48, stfp=0x9d12428)
at src/mesa/state_tracker/st_program.c:444
#6  0x0185d623 in translate_fp (st=0x9909d48, stfp=0x9d12428) at
src/mesa/state_tracker/st_atom_shader.c:64
#7  0x0185d832 in update_fp (st=0x9909d48) at
src/mesa/state_tracker/st_atom_shader.c:175
#8  0x01859578 in st_validate_state (st=0x9909d48) at
src/mesa/state_tracker/st_atom.c:172
#9  0x017c6978 in st_draw_vbo (ctx=0x98cd438, arrays=0x990c928,
prims=0xbff76fac, nr_prims=1, ib=0x0, index_bounds_valid=1 '\001', min_index=0,
max_index=3) at src/mesa/state_tracker/st_draw.c:649
#10 0x01849725 in vbo_draw_arrays (ctx=0x98cd438, mode=7, start=0, count=4,
numInstances=1) at src/mesa/vbo/vbo_exec_array.c:588
#11 0x0184988c in vbo_exec_DrawArrays (mode=7, start=0, count=4) at
src/mesa/vbo/vbo_exec_array.c:619
#12 0x0804dddc in piglit_draw_rect (x=-1, y=-1, w=2, h=2) at
piglit/tests/util/piglit-util.c:734
#13 0x0804c003 in piglit_display () at piglit/tests/shaders/shader_runner.c:673
#14 0x0804e93f in display () at piglit/tests/util/piglit-framework.c:52
#15 0x005f9820 in fghRedrawWindow (window=0x988f050, enumerator=0xbff772a8) at
freeglut_main.c:210
#16 fghcbDisplayWindow (window=0x988f050, enumerator=0xbff772a8) at
freeglut_main.c:227
#17 0x005fd660 in fgEnumWindows (enumCallback=0x5f9790 <fghcbDisplayWindow>,
enumerator=0xbff772a8) at freeglut_structure.c:394
#18 0x005f9cdb in fghDisplayAll () at freeglut_main.c:249
#19 glutMainLoopEvent () at freeglut_main.c:1450
#20 0x005fa605 in glutMainLoop () at freeglut_main.c:1498
#21 0x0804eae8 in main (argc=2, argv=0xbff77534) at
piglit/tests/util/piglit-framework.c:118
(gdb) frame 1
#1  0x01875ec5 in src_register (t=0xbff75548, file=PROGRAM_UNIFORM,
index=-1024) at src/mesa/state_tracker/st_mesa_to_tgsi.c:228
228          assert(index >= 0);
(gdb) print index
$1 = -1024

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[Bug 31800] [r300g] src/mesa/state_tracker/st_mesa_to_tgsi.c:228:src_register: Assertion `index >= 0' failed.

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=31800

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Drivers/Gallium/r300        |Mesa core
         AssignedTo|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop.
                   |.org                        |org

--- Comment #1 from Marek Olšák <maraeo@gmail.com> 2010-11-21 13:38:20 PST ---
glsl-fs-uniform-array-6 surpasses hardware limits of r300 (it uses 1024 vec4s,
while only 256 are supported).

To "fix" this for r300, the test should check for
GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB and skip accordingly (there's a patch in
ML which sets MaxUniformComponents in st/mesa).

I am reassigning this bug to Mesa core, because the assertion failure is
outside the driver.

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