{ "source_commit": "7d52673791834caa743907dde83a1949134ef2f0", "host": { "os": "Ubuntu 24.04.4 LTS", "kernel": "6.14.0-37-generic", "gpu": "NVIDIA GeForce RTX 4090", "nvidia_driver": "580.173.02", "libEGL_nvidia_sha256": "3b3f89a28f0d382e76dc2caf4282fe084d71d10d5cb979a52dcd48c53265a4f9" }, "system_packages_installed_or_upgraded": [], "system_packages_used_as_found": { "g++": "13.3.0-6ubuntu2~24.04.1", "cmake": "3.28.3", "libc6": "2.39-0ubuntu8.9", "libfreetype-dev": "2.13.2+dfsg-1ubuntu0.2", "libgl-dev": "1.7.0-1build1", "libglvnd-dev": "1.7.0-1build1", "libgomp1": "14.2.0-4ubuntu2~24.04.1", "libx11-dev": "2:1.8.7-1build1", "libxext-dev": "2:1.3.4-1build2", "xvfb": "2:21.1.12-1ubuntu1.6", "python3": "3.12.3" }, "why_not_apt": "A dry run of 'apt-get install libsdl2-dev libglm-dev' on the shared host would have upgraded 14 installed packages, Mesa among them. SDL2 and GLM are therefore built or unpacked under the task prefix.", "local_prefix": { "SDL2": { "version": "2.30.0", "url": "https://github.com/libsdl-org/SDL/releases/download/release-2.30.0/SDL2-2.30.0.tar.gz", "bytes": 7428037, "sha256": "36e2e41557e0fa4a1519315c0f5958a87ccb27e25c51776beb6f1239526447b0", "build": "CMake Release, shared, X11 video driver with GLX only; audio, Wayland, KMSDRM, Vulkan, GLES, haptic, sensor, HIDAPI, D-Bus and IBus off", "built_library_sha256": "9f9a151c9fbbf473ce6aa40aeb4a8d6e9fce913fc6af282c63d159a2676efd5c" }, "GLM": { "version": "0.9.9.8", "url": "https://github.com/g-truc/glm/releases/download/0.9.9.8/glm-0.9.9.8.zip", "bytes": 5670692, "sha256": "37e2a3d62ea3322e43593c34bae29f57e3e251ea89f4067506c94043769ade4c", "build": "header-only; headers copied" }, "VirtualGL": { "version": "3.1.3", "url": "https://github.com/VirtualGL/virtualgl/releases/download/3.1.3/virtualgl_3.1.3_amd64.deb", "bytes": 1618538, "sha256": "ca0f9ad6263f93ca9393dd55620835c2b042d6a825f21bf0ea9a39e61e67b16e", "build": "unpacked with dpkg -x, not installed", "libvglfaker_sha256": "6aa78784650b61f5b98473b016ed8f059a380aa1aece914fab6ab28817286e2b", "libdlfaker_sha256": "23f3ec5a11ca17b6dda7f8d9907e7b18f3f1e5229e5a345e83397f323761cb2d" } }, "graphics": { "method": "Xvfb display :94 provides the X11 window only. VirtualGL's faker libraries are preloaded and VGL_DISPLAY=/dev/dri/card1 selects its EGL back end on the NVIDIA device, so the GLX calls made by SDL2 are served by an off-screen NVIDIA context. No X server runs on the GPU and no system configuration is changed.", "environment": { "DISPLAY": ":94", "VGL_DISPLAY": "/dev/dri/card1", "VGL_READBACK": "sync", "LD_PRELOAD": "/vgl/usr/lib/libdlfaker.so:/vgl/usr/lib/libvglfaker.so", "LD_LIBRARY_PATH": "/prefix/lib:/vgl/usr/lib", "OMP_NUM_THREADS": "1" }, "probe": "VirtualGL glxinfo -B on :94: OpenGL core profile version string 4.6.0 NVIDIA 580.173.02, renderer NVIDIA GeForce RTX 4090/PCIe/SSE2, direct rendering yes", "context_created_by_stonefish": "4.3.0 NVIDIA 580.173.02, GLSL 4.30 NVIDIA via Cg compiler" }, "stonefish_build": { "cmake": "-DCMAKE_BUILD_TYPE=Release -DBUILD_TESTS=ON -DCMAKE_PREFIX_PATH=/prefix -DCMAKE_CXX_FLAGS=-I/prefix/include", "effective_cxx_flags": "-Wno-stringop-overflow -O3 -DNDEBUG -std=gnu++20 -fPIC", "definitions": [ "BT_EULER_DEFAULT_ZYX", "BT_USE_DOUBLE_PRECISION", "SHADER_DIR_PATH=/verified-source/Library/shaders/", "DATA_DIR_PATH=/verified-source/Tests/Data/" ], "openmp": "The pinned CMakeLists links libgomp but does not pass -fopenmp when compiling. The built library imports only omp_get_max_threads and omp_set_num_threads and no GOMP_* entry point, so its '#pragma omp' loops run serially in this build.", "bullet": "3.17, double precision, bundled in 3rdparty/", "binaries_on_reference_host": { "build/stonefish/libStonefish_test.so": "c127a719a712f60944245c0f08cdb81d091d8a9fb5f397df9972c1461d700947", "build/stonefish/Tests/UnderwaterTest": "75b524d6f1b1ef144d7569f3b281dc55ed675dc34a8f09c98d0f8367f7d0bd6d", "build/adapter/marine_trial": "349ff4a9e1162596cf1c671c13cac8b818b41846e44cc234ea0d412eca7e1611" }, "note": "Binary hashes include absolute build paths and are not claimed reproducible on another prefix." }, "media_tools": { "ffmpeg": "7.0.2 static build from imageio-ffmpeg, sha256 e7e7fb30477f717e6f55f9180a70386c62677ef8a4d4d1a5d948f4098aa3eb99", "numpy": "2.2.6" }, "observed_faults": { "loading_thread": { "observed": "Before the adapter replaced the start-up console thread, 6 of 8 one-second runs under MALLOC_CHECK_=3 ended in a segmentation fault during scenario build or a heap-corruption abort, and 6 of the 10 runs of the first open-loop series did. An AddressSanitizer build of the library and adapter reported a SEGV read at 0x2b4 in libnvidia-eglcore.so.580.173.02, called from sf::GraphicalSimulationApp::RenderLoadingScreen (GraphicalSimulationApp.cpp:1078) on the thread SDL names loadingThread. A second ASan run that did not hit the fault completed with no report from Stonefish or adapter code.", "cause_as_far_as_established": "Two GL contexts on the same window used from two threads at once through the VirtualGL EGL back end. Whether a native GLX server shows the same fault was not tested.", "workaround": "native/marine_trial.cpp defines SDL_CreateThread and replaces the thread named loadingThread with one that returns at once. After the change 10 of 10 heap-checked runs, 11 of 11 open-loop runs, 8 of 8 closed-loop development runs, the capture and the replay exited with status 0.", "unchanged_upstream_binary": "Tests/UnderwaterTest was started 7 times without heap checking and reached the running simulation each time; it was stopped by timeout, so its behaviour at exit and under heap checking is not established." }, "teardown": { "observed": "Leaving main normally faulted in sf::OpenGLOcean::~OpenGLOcean, reached from ~SimulationManager -> DestroyScenario -> ~Ocean after the application had released its GL context (gdb backtrace of the adapter process).", "workaround": "The adapter closes its journals, writes counts.json and ends the process with _Exit(0)." } } }