On 10/09/2011 07:41 AM, Marcin Slusarz wrote:
On Tue, Oct 04, 2011 at 01:44:03PM -0700, Ian Romanick wrote:
This is the next in my series of internal shader API cleaning.  The
primary purpose of this series is to remove the extra tracking of Mesa
IR shaders.  The gl_shader_program has a reference to the Mesa IR
shader for each stage, and the entry in gl_shader_program::_LinkedShaders
has a reference to the same Mesa IR.

The first three patches eliminate the extra references, and the
remaining six implement some refactors and clean-ups enabled by the
first three.

  src/glsl/ir.cpp                                |    8 ---
  src/glsl/ir.h                                  |    8 ---
  src/mesa/drivers/dri/i965/brw_fs.cpp           |    8 ++-
  src/mesa/drivers/dri/i965/brw_fs.h             |    3 +-
  src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp |    3 +-
  src/mesa/drivers/dri/i965/brw_vs.c             |    8 ++-
  src/mesa/drivers/dri/i965/brw_wm.c             |    2 +-
  src/mesa/main/context.c                        |    8 +--
  src/mesa/main/ff_fragment_shader.cpp           |   10 ++--
  src/mesa/main/mtypes.h                         |    3 -
  src/mesa/main/shaderapi.c                      |   32 +++++------
  src/mesa/main/shaderobj.c                      |    4 -
  src/mesa/main/state.c                          |   18 ++++--
  src/mesa/main/texstate.c                       |   18 +++---
  src/mesa/main/uniforms.c                       |   42 +++++++++-----
  src/mesa/program/ir_to_mesa.cpp                |   37 ++++--------
  src/mesa/program/prog_uniform.c                |   74 ------------------------
  src/mesa/program/prog_uniform.h                |    4 -
  src/mesa/state_tracker/st_glsl_to_tgsi.cpp     |   44 ++++-----------
  src/mesa/state_tracker/st_program.c            |    9 +--
  20 files changed, 111 insertions(+), 232 deletions(-)


Commits 1-5 are unbuildable and one of them introduces crashes in many
piglit tests on nv50, e.g. glx-shader-sharing, glsl-bindattriblocation.

glx-shader-sharing:
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff37b1dac in destroy_shader_program_variants_cb (userData=<optimized out>, 
data=<optimized out>, key=<optimized out>) at state_tracker/st_program.c:1157
warning: Source file is more recent than executable.
1157                                      
shProg->_LinkedShaders[MESA_SHADER_VERTEX]->Program);

Does Stephane's patch from the weekend (http://marc.info/?l=mesa3d-dev&m=131820561425054&w=2) fix this issue? If it does, you should send him a Tested-by.
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