mesa: d528907fd2950c7bb968fff66dd79863cd128890 (master 10.6.0-devel) $ ./bin/shader_runner tests/spec/glsl-1.50/execution/geometry/generate-zero-primitives.shader_test -auto Floating point exception (core dumped) Core was generated by `./bin/shader_runner tests/spec/glsl-1.50/execution/geometry/generate-zero-primi'. Program terminated with signal SIGFPE, Arithmetic exception. #0 0x00007fe007e6b16f in draw_pt_emit_prepare (emit=0x1d48600, prim=prim@entry=0, max_vertices=max_vertices@entry=0x1dfdf88) at draw/draw_pt_emit.c:116 116 *max_vertices = (draw->render->max_vertex_buffer_bytes / (gdb) l 111 translate_key_compare(&emit->translate->key, &hw_key) != 0) { 112 translate_key_sanitize(&hw_key); 113 emit->translate = translate_cache_find(emit->cache, &hw_key); 114 } 115 116 *max_vertices = (draw->render->max_vertex_buffer_bytes / 117 (vinfo->size * 4)); 118 } 119 120 (gdb) print emit->translate->key $1 = {output_stride = 0, nr_elements = 0, element = {{ type = TRANSLATE_ELEMENT_NORMAL, input_format = PIPE_FORMAT_NONE, output_format = PIPE_FORMAT_NONE, input_buffer = 0, input_offset = 0, instance_divisor = 0, output_offset = 0} <repeats 33 times>}} (gdb) print hw_key $2 = {output_stride = 0, nr_elements = 0, element = {{ type = TRANSLATE_ELEMENT_NORMAL, input_format = PIPE_FORMAT_NONE, output_format = PIPE_FORMAT_NONE, input_buffer = 0, input_offset = 0, instance_divisor = 0, output_offset = 0} <repeats 33 times>}}
558f51f1c5491d86c73769065c6df12a2b73dc4d is the first bad commit commit 558f51f1c5491d86c73769065c6df12a2b73dc4d Author: Marek Olšák <marek.olsak@amd.com> Date: Sun Feb 22 13:22:07 2015 +0100 st/mesa: cleanup st_translate_geometry_program Mostly dead code or code that didn't do anything. Computing gs_num_outputs at the end was also useless. It's already set correctly. Reviewed-by: Dave Airlie <airlied@redhat.com> :040000 040000 57740001094746c91e2668d8bdfdcb09dc75e7bf ccfee80ddbd7544582285d89c8b21fbfa8bead74 M src bisect run success
The GS before: GEOM PROPERTY GS_INPUT_PRIMITIVE TRIANGLES PROPERTY GS_OUTPUT_PRIMITIVE TRIANGLE_STRIP PROPERTY GS_MAX_OUTPUT_VERTICES 3 PROPERTY GS_INVOCATIONS 1 DCL OUT[0], GENERIC[0] 0: END After: GEOM PROPERTY GS_INPUT_PRIMITIVE TRIANGLES PROPERTY GS_OUTPUT_PRIMITIVE TRIANGLE_STRIP PROPERTY GS_MAX_OUTPUT_VERTICES 3 PROPERTY GS_INVOCATIONS 1 0: END Draw apparently doesn't like geometry shaders without declarations.
Fixed by 27a34f62baa991eadd040302748c48b31ec21a0c. Closing.
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