http://bugs.freedesktop.org/show_bug.cgi?id=14281
Summary: SIGSEGV in flat_8A8B8G8R_line v7.0.1 inside glDrawArrays
Product: Mesa
Version: unspecified
Platform: IA64 (Itanium)
OS/Version: Linux (All)
Status: NEW
Severity: major
Priority: high
Component: Mesa core
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
The following snippet of code:
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, ptType, 0, vertices);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glDrawArrays(shapeType, 0, ptCount);
Sometimes causes a SIGSEGV inside glDrawArrays, but I am not able to cause the
crash reliably, but it has happened several times to me (I am now trying v7.0.2
to see if it still occurs there):
#0 flat_8A8B8G8R_line (ctx=0x3f800000, vert0=0xfffffffffffffffc,
vert1=0x2aaab296073c) at ../../src/mesa/swrast/s_linetemp.h:336
#1 0x00002b0bcd646c0c in _swsetup_render_line_tri (ctx=0x24f3c00,
e0=4294967292, e1=2996176700, e2=4294966326, facing=4278190335) at
swrast_setup/ss_triangle.c:94
#2 0x00002b0bcd64b4c5 in triangle_unfilled_rgba (ctx=0xfffffffffffff0d4,
e0=4294965356, e1=4294963412, e2=970) at swrast_setup/ss_tritmp.h:153
#3 0x00002b0bcd5b20a2 in _tnl_render_poly_elts (ctx=0x24f3c00, start=1,
count=4, flags=2) at tnl/t_vb_rendertmp.h:303
#4 0x00002b0bcd5b25c2 in _tnl_RenderClippedPolygon (ctx=0xfffffffffffff0d4,
elts=0xfffffffffffffffc, n=2996176700) at tnl/t_vb_render.c:244
#5 0x00002b0bcd5ac9c6 in clip_quad_4 (ctx=0x24f3c00, v0=4294967292,
v1=2996176700, v2=4294966326, v3=3, mask=192 'À') at tnl/t_vb_cliptmp.h:281
#6 0x00002b0bcd5ae987 in clip_render_quads_verts (ctx=0x24f3c00, start=3,
count=4, flags=4294966326) at tnl/t_vb_rendertmp.h:334
#7 0x00002b0bcd5b2725 in run_render (ctx=0x24f3c00, stage=0xfffffffffffffffc)
at tnl/t_vb_render.c:320
#8 0x00002b0bcd5a944a in _tnl_run_pipeline (ctx=0x24f3c00) at
tnl/t_pipeline.c:158
#9 0x00002b0bcd5a991a in _tnl_draw_prims (ctx=0x24f3c00, arrays=0x2546aa8,
prim=0x7fffef5bc3e0, nr_prims=1, ib=0x0, min_index=2996176700,
max_index=4294967292) at tnl/t_draw.c:403
#10 0x00002b0bcd59c79f in vbo_exec_DrawArrays (mode=7, start=0, count=4) at
vbo/vbo_exec_array.c:259
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