[Bug 32905] New: [r300g] src/gallium/drivers/r300/r300_state.c:1874:r300_set_constant_buffer: Assertion `(buf->width0 % (4 * sizeof(float))) == 0' failed.

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32905

           Summary: [r300g]
                    src/gallium/drivers/r300/r300_state.c:1874:r300_set_co
                    nstant_buffer: Assertion `(buf->width0 % (4 *
                    sizeof(float))) == 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: 82acc3b14c2e85b4367bcbbb50f6a7e946050b19 (master)

chipset: RV530 71C5 (ATI Radeon X1600)
system architecture: i686
libdrm-dev: 2.4.21-1ubuntu2.1
kernel version: 2.6.35-24-generic
Linux distribution: Ubuntu 10.10 i386

Run piglit fdo10370 test.

$ ./bin/fdo10370 -auto
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/gallium/drivers/r300/r300_state.c:1874:r300_set_constant_buffer: Assertion
`(buf->width0 % (4 * sizeof(float))) == 0' failed.
Trace/breakpoint trap


Program terminated with signal 5, Trace/breakpoint trap.
#0  0x01109d6f in _debug_assert_fail (expr=0x1986b44 "(buf->width0 % (4 *
sizeof(float))) == 0", file=0x19867dc "src/gallium/drivers/r300/r300_state.c",
line=1874, 
    function=0x1986b6d "r300_set_constant_buffer") at
src/gallium/auxiliary/util/u_debug.c:234
234          os_abort();
(gdb) bt
#0  0x01109d6f in _debug_assert_fail (expr=0x1986b44 "(buf->width0 % (4 *
sizeof(float))) == 0", file=0x19867dc "src/gallium/drivers/r300/r300_state.c",
line=1874, 
    function=0x1986b6d "r300_set_constant_buffer") at
src/gallium/auxiliary/util/u_debug.c:234
#1  0x01082953 in r300_set_constant_buffer (pipe=0x8a8a528, shader=0, index=0,
buf=0x8a809c0) at src/gallium/drivers/r300/r300_state.c:1874
#2  0x018f27c5 in st_upload_constants (st=0x8aee1d8, params=0x8add398,
shader_type=0) at src/mesa/state_tracker/st_atom_constbuf.c:92
#3  0x018f28a4 in update_vs_constants (st=0x8aee1d8) at
src/mesa/state_tracker/st_atom_constbuf.c:114
#4  0x018f1a1b in st_validate_state (st=0x8aee1d8) at
src/mesa/state_tracker/st_atom.c:196
#5  0x018fd3f5 in st_Clear (ctx=0x8aafa10, mask=1) at
src/mesa/state_tracker/st_cb_clear.c:464
#6  0x018874f0 in _mesa_Clear (mask=16384) at src/mesa/main/clear.c:242
#7  0x08049032 in display () at piglit/tests/bugs/fdo10370.c:66
#8  0x00720820 in fghRedrawWindow (window=DWARF-2 expression error: DW_OP_reg
operations must be used either alone or in conjuction with DW_OP_piece or
DW_OP_bit_piece.
) at freeglut_main.c:210
#9  fghcbDisplayWindow (window=DWARF-2 expression error: DW_OP_reg operations
must be used either alone or in conjuction with DW_OP_piece or DW_OP_bit_piece.
) at freeglut_main.c:227
#10 0x00724660 in fgEnumWindows (enumCallback=0x720790 <fghcbDisplayWindow>,
enumerator=0xbfd89dd8) at freeglut_structure.c:394
#11 0x00720cdb in fghDisplayAll () at freeglut_main.c:249
#12 glutMainLoopEvent () at freeglut_main.c:1450
#13 0x00721605 in glutMainLoop () at freeglut_main.c:1498
#14 0x08049678 in main (argc=2, argv=0xbfd8a054) at
piglit/tests/bugs/fdo10370.c:170
(gdb) frame 1
#1  0x01082953 in r300_set_constant_buffer (pipe=0x8a8a528, shader=0, index=0,
buf=0x8a809c0) at src/gallium/drivers/r300/r300_state.c:1874
1874            assert((buf->width0 % (4 * sizeof(float))) == 0);
(gdb) print buf->width0
$1 = 4294967295
(gdb) print /x buf->width0
$2 = 0xffffffff

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