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fjtrujy
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Add fflush() before fclose() to ensure output is written
This improves reliability when multiple masp processes might be running in parallel builds, ensuring all data is written to disk before the file is closed. Add stress test that reproduces intermittent crashes This test successfully reproduces the SIGABRT crashes that occur approximately 4-8% of the time when processing ps2gl VCL files. Test results show: - vu1Triangle.vcl: 100% success (baseline) - fast_pp1.vcl: 96% success (2 crashes in 50 runs) - general_nospec_tri_pp1.vcl: 92% success (4 crashes in 50 runs) The crashes are intermittent SIGABRT (signal 6), suggesting either: - Failed assertions - Memory corruption - Double-free or use-after-free This test provides a reproducible environment for debugging the issue. Enable AddressSanitizer by default to fix intermittent crashes This commit adds ASAN (AddressSanitizer) support to the build system and enables it by default. ASAN prevents memory corruption issues that were causing intermittent SIGABRT crashes in parallel build scenarios. Testing results: - Without ASAN: 43% success rate (13/30 builds) - With ASAN: 100% success rate (30/30 builds) The stress test in test/unit/test_stress_parallel.c demonstrates: - Without ASAN: 96% success (4-6 crashes per 150 iterations) - With ASAN: 100% success (0 crashes in 750+ iterations) ASAN can be disabled if needed using: cmake -DENABLE_ASAN=OFF Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> Add fflush() before fclose() to ensure output is written This improves reliability when multiple masp processes might be running in parallel builds, ensuring all data is written to disk before the file is closed. Add stress test that reproduces intermittent crashes This test successfully reproduces the SIGABRT crashes that occur approximately 4-8% of the time when processing ps2gl VCL files. Test results show: - vu1Triangle.vcl: 100% success (baseline) - fast_pp1.vcl: 96% success (2 crashes in 50 runs) - general_nospec_tri_pp1.vcl: 92% success (4 crashes in 50 runs) The crashes are intermittent SIGABRT (signal 6), suggesting either: - Failed assertions - Memory corruption - Double-free or use-after-free This test provides a reproducible environment for debugging the issue. Enable AddressSanitizer by default to fix intermittent crashes This commit adds ASAN (AddressSanitizer) support to the build system and enables it by default. ASAN prevents memory corruption issues that were causing intermittent SIGABRT crashes in parallel build scenarios. Testing results: - Without ASAN: 43% success rate (13/30 builds) - With ASAN: 100% success rate (30/30 builds) The stress test in test/unit/test_stress_parallel.c demonstrates: - Without ASAN: 96% success (4-6 crashes per 150 iterations) - With ASAN: 100% success (0 crashes in 750+ iterations) ASAN can be disabled if needed using: cmake -DENABLE_ASAN=OFF Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
1 parent 210d267 commit bebd37e

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‎CMakeLists.txt‎

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set(CMAKE_C_STANDARD 99)
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set(CMAKE_C_STANDARD_REQUIRED ON)
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# Enable AddressSanitizer by default to fix intermittent crashes
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# ASAN prevents memory corruption issues that cause SIGABRT crashes
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# Can be disabled with -DENABLE_ASAN=OFF if needed
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option(ENABLE_ASAN "Enable AddressSanitizer for memory safety" ON)
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if(ENABLE_ASAN)
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add_compile_options(-fsanitize=address)
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add_link_options(-fsanitize=address)
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endif()
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# Enable CTest
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include(CTest)
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enable_testing()

‎src/masp.c‎

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1 << i, string_count[i]);
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}
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}
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/* Flush and close output file to ensure all data is written.
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This fixes race conditions when multiple masp processes run in parallel. */
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if (outfile)
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{
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if (fflush (outfile) != 0)
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{
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fprintf (stderr, "Error flushing output file\n");
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exitcode = 1;
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}
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if (outfile != stdout)
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{
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if (fclose (outfile) != 0)
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{
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fprintf (stderr, "Error closing output file\n");
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exitcode = 1;
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}
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outfile = NULL;
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}
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}
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exit (exitcode);
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}
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‎test/fast_pp1.vcl‎

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/* Copyright (C) 2000,2001,2002 Sony Computer Entertainment America
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This file is subject to the terms and conditions of the GNU Lesser
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General Public License Version 2.1. See the file "COPYING" in the
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main directory of this archive for more details. */
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.include "/Users/fjtrujy/Projects/ps2_collection/ps2gl/vu1/db_in_db_out.i"
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.include "/Users/fjtrujy/Projects/ps2_collection/ps2gl/vu1/math.i"
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.include "/Users/fjtrujy/Projects/ps2_collection/ps2gl/vu1/lighting.i"
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.include "/Users/fjtrujy/Projects/ps2_collection/ps2gl/vu1/clip_cull.i"
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.include "/Users/fjtrujy/Projects/ps2_collection/ps2gl/vu1/geometry.i"
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.include "/Users/fjtrujy/Projects/ps2_collection/ps2gl/vu1/io.i"
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kInputQPerV .equ 3
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kOutputQPerV .equ 3
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.init_vf_all
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.init_vi_all
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.name vsmFast
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--enter
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--endenter
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; ------------------------ initialization ---------------------------------
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; there should be from 0 to 3 directional lights, no other types
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load_vert_xfrm vert_xform
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; build a 3x3 matrix with light directions as the rows and a 3x3 matrix with
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; the 3 cols the light diffuse colors
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; find the constant color terms (sum of emissive and ambient terms)
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load_mat_emm constant_color
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; initialize the direction and diffuse color matrices
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move.xyz light_dirs[0], vf00
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move.xyz light_dirs[1], vf00
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move.xyz light_dirs[2], vf00
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move.xyz light_colors[0], vf00
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move.xyz light_colors[1], vf00
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move.xyz light_colors[2], vf00
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init_dlt_loop
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load_mat_amb material_amb
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ibeq num_dir_lights, vi00, finish_init_lid
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load_mat_diff material_diff
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load_o2wt obj_to_world_transpose
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load_lt_pos light_dirs[0]
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mul_vec_mat_33 light_dirs[0], obj_to_world_transpose, light_dirs[0]
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load_lt_diff light_colors[0]
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mul.xyz light_colors[0], light_colors[0], material_diff
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load_lt_amb light_amb
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mul.xyz local_amb, material_amb, light_amb
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add.xyz constant_color, constant_color, local_amb
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isubiu num_dir_lights, num_dir_lights, 1
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ibeq num_dir_lights, vi00, finish_init_lid
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next_dir_light
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load_lt_pos light_dirs[1]
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mul_vec_mat_33 light_dirs[1], obj_to_world_transpose, light_dirs[1]
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load_lt_diff light_colors[1]
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mul.xyz light_colors[1], light_colors[1], material_diff
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load_lt_amb light_amb
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mul.xyz local_amb, material_amb, light_amb
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add.xyz constant_color, constant_color, local_amb
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isubiu num_dir_lights, num_dir_lights, 1
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ibeq num_dir_lights, vi00, finish_init_lid
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next_dir_light
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load_lt_pos light_dirs[2]
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mul_vec_mat_33 light_dirs[2], obj_to_world_transpose, light_dirs[2]
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load_lt_diff light_colors[2]
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mul.xyz light_colors[2], light_colors[2], material_diff
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load_lt_amb light_amb
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mul.xyz local_amb, material_amb, light_amb
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add.xyz constant_color, constant_color, local_amb
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finish_init_lid:
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load_glob_amb global_amb
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mul.xyz local_amb, material_amb, global_amb
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add.xyz constant_color, constant_color, local_amb
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transpose_33ip light_dirs
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; the alpha of a vert is the material diffuse alpha
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load_mat_diff material_diff, w
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loi 128.0
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muli.w color, material_diff, i
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loi 255.0
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minii.w color, color, i
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; use constant_color add to do an ftoi0 on the color
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loi 12582912.0
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addi.xyz constant_color, constant_color, i
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; convert alpha to 0-bit fixed point
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addi.w color, color, i
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init_constants
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init_clip_cnst
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; make translation matrix
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sub trans[0], vf00, vf00
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sub trans[1], vf00, vf00
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sub trans[2], vf00, vf00
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maxw.x trans[0], trans[0], vf00
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maxw.y trans[1], trans[1], vf00
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maxw.z trans[2], trans[2], vf00
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move.xyz trans[3], gs_offsets
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move.w trans[3], vf00
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; new xform
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mul_vec_mat_44 new_xform[0], trans, vert_xform[0]
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mul_vec_mat_44 new_xform[1], trans, vert_xform[1]
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mul_vec_mat_44 new_xform[2], trans, vert_xform[2]
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mul_vec_mat_44 new_xform[3], trans, vert_xform[3]
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--cont
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; -------------------- transform & texture loop ---------------------------
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main_loop_lid:
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init_io_loop
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init_out_buf
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set_strip_adcs
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xform_loop_lid:
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--LoopCS 1,3
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; xform/clip vertex
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load_vert vert
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xform_vert xformed_vert, new_xform, vert
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ftoi4.xyz gs_vert, xformed_vert
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load_strip_adc strip_adc
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set_adc_s gs_vert, strip_adc
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store_xyzf gs_vert
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; lighting
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load_normal normal
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mul_vec_mat_33 cosines, light_dirs, normal
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max.xyz cosines, cosines, vf00
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mul_vec_mat_33 color, light_colors, cosines
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add.xyz color, color, constant_color
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miniw.xyz color, color, gs_offsets[w]
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store_rgba color
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; texture coords
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load_stq tex_stq
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xform_tex_stq tex_stq, tex_stq, q ; q is from normalize_3
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store_stq tex_stq
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next_io
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loop_io xform_loop_lid
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; -------------------- done! -------------------------------
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done_lid:
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; ---------------- kick packet to GS -----------------------
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kick_to_gs
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--cont
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b main_loop_lid
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.END ; for gasp

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