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https://bugs.freedesktop.org/show_bug.cgi?id=2516          
     




------- Additional Comments From [EMAIL PROTECTED]  2005-03-09 15:06 -------
Some more debugging showed the problem:
When a rasterization fallback is hit, _tnl_need_projected_coords must be set to
true. This indeed happens, however r200ChooseVertexState will get called later
and this may set (depending on current vertex format) this to false again. When
this is set to false this will cause VB->NdcPtr to be NULL (in t_vb_vertex.c,
run_vertex_stage) which will in turn cause the VB->AttribPtr[VERT_ATTRIB_POS] to
be NULL too (ss_context.c, _swsetup_RenderStart) --> boom.          
     
     
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