[Bug 32366] New: [r600g] SIGSEGV src/gallium/drivers/r600/r600_state.c:143

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32366

           Summary: [r600g] SIGSEGV
                    src/gallium/drivers/r600/r600_state.c:143
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: vlee@vmware.com


mesa: bb045d339b53f7ddd42bfca363e3d589b0ddcf20 (master)

chipset: RV620
system architecture: i686
libdrm-dev: 2.14.21-1ubuntu2.1
kernel version: 2.6.35-23-generic
Linux distribution: Ubuntu 10.10 i386

Run piglit draw-vertices test. The test now crashes but previously ran to
completion.

$ ./bin/draw-vertices
Ubyte colors - components: 3, stride: 3, offset: 0
Probe at (5,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 0.000000
Ubyte colors - components: 3, stride: 4, offset: 0
Ubyte colors - components: 4, stride: 4, offset: 0
Ubyte colors - components: 3, stride: 3, offset: 1
Probe at (65,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 0.000000
Ubyte colors - components: 3, stride: 4, offset: 1
Probe at (85,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 1.000000 0.000000
Ubyte colors - components: 4, stride: 4, offset: 1
Probe at (105,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 1.000000 0.000000
Ubyte colors - components: 3, stride: 3, offset: 2
Probe at (125,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 0.000000
Ubyte colors - components: 3, stride: 4, offset: 2
Probe at (145,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 1.000000
Ubyte colors - components: 4, stride: 4, offset: 2
Probe at (165,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 1.000000
Ubyte colors - components: 3, stride: 3, offset: 3
Probe at (185,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 0.000000
Ubyte colors - components: 3, stride: 4, offset: 3
Probe at (205,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 0.000000
Ubyte colors - components: 4, stride: 4, offset: 3
Probe at (225,5)
  Expected: 1.000000 0.000000 0.000000
  Observed: 0.000000 0.000000 0.000000
Short vertices - components: 2, stride: 4, offset: 0
Short vertices - components: 2, stride: 6, offset: 0
Short vertices - components: 3, stride: 6, offset: 0
Short vertices - components: 2, stride: 8, offset: 0
Short vertices - components: 3, stride: 8, offset: 0
Short vertices - components: 4, stride: 8, offset: 0
Short vertices - components: 2, stride: 4, offset: 2
Probe at (45,25)
  Expected: 1.000000 1.000000 1.000000
  Observed: 0.200000 0.200000 0.200000
Short vertices - components: 2, stride: 6, offset: 2
Probe at (65,25)
  Expected: 1.000000 1.000000 1.000000
  Observed: 0.200000 0.200000 0.200000
Short vertices - components: 3, stride: 6, offset: 2
Probe at (85,25)
  Expected: 1.000000 1.000000 1.000000
  Observed: 0.200000 0.200000 0.200000
Short vertices - components: 2, stride: 8, offset: 2
Probe at (105,25)
  Expected: 1.000000 1.000000 1.000000
  Observed: 0.200000 0.200000 0.200000
Short vertices - components: 3, stride: 8, offset: 2
Probe at (125,25)
  Expected: 1.000000 1.000000 1.000000
  Observed: 0.200000 0.200000 0.200000
Short vertices - components: 4, stride: 8, offset: 2
Probe at (145,25)
  Expected: 1.000000 1.000000 1.000000
  Observed: 0.200000 0.200000 0.200000
Int vertices
Double vertices
Segmentation fault (core dumped)


(gdb) bt
#0  0x01027b9f in r600_vertex_buffer_update (rctx=0x833fd40) at
src/gallium/drivers/r600/r600_state.c:143
#1  0x0102cdb1 in r600_bind_vertex_elements (ctx=0x833fd40, state=0x86f2138) at
src/gallium/drivers/r600/r600_state_common.c:129
#2  0x01030663 in r600_begin_vertex_translate (rctx=0x833fd40) at
src/gallium/drivers/r600/r600_translate.c:163
#3  0x01027bb5 in r600_vertex_buffer_update (rctx=0x833fd40) at
src/gallium/drivers/r600/r600_state.c:147
#4  0x0102cdb1 in r600_bind_vertex_elements (ctx=0x833fd40, state=0x86f0ca8) at
src/gallium/drivers/r600/r600_state_common.c:129
#5  0x01297a68 in cso_set_vertex_elements (ctx=0x86a4fd8, count=1,
states=0xbfb50604) at src/gallium/auxiliary/cso_cache/cso_context.c:1126
#6  0x0117e0eb in st_draw_vbo (ctx=0x86514a0, arrays=0x8693528,
prims=0xbfb50aac, nr_prims=1, ib=0x0, index_bounds_valid=1 '\001', min_index=0, 
    max_index=2) at src/mesa/state_tracker/st_draw.c:702
#7  0x01202f7d in vbo_draw_arrays (ctx=0x86514a0, mode=4, start=0, count=3,
numInstances=1) at src/mesa/vbo/vbo_exec_array.c:588
#8  0x012030e4 in vbo_exec_DrawArrays (mode=4, start=0, count=3) at
src/mesa/vbo/vbo_exec_array.c:619
#9  0x0804c206 in test_double_vertices ()
#10 0x0804c2cd in piglit_display ()
#11 0x0804e37f in display ()
#12 0x00125820 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
#13 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
#14 0x00129660 in fgEnumWindows (enumCallback=0x125790 <fghcbDisplayWindow>,
enumerator=0xbfb50cc8) at freeglut_structure.c:394
#15 0x00125cdb in fghDisplayAll () at freeglut_main.c:249
#16 glutMainLoopEvent () at freeglut_main.c:1450
#17 0x00126605 in glutMainLoop () at freeglut_main.c:1498
#18 0x0804e528 in main ()
(gdb) frame 0
#0  0x01027b9f in r600_vertex_buffer_update (rctx=0x833fd40) at
src/gallium/drivers/r600/r600_state.c:143
143        if (rctx->vertex_elements->incompatible_layout) {
(gdb) print rctx->vertex_elements
$1 = (struct r600_vertex_element *) 0x0

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