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[iterate-2G] db16cyc spin-hint cooperative yield: unblock title-screen 0x10a0 gate

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The silph title state machine (tid13) blocked on event 0x10a0, never signaled.
Root: the event's producer chain runs on the silph worker (entry 0x821C4AD0,
our tid14), which was starved. tid14 shares a HW slot with a guest spinlock/
barrier participant (sub_824D1328, entry 0x824D2940) that busy-spins on the
db16cyc hint `or r31,r31,r31` (encoding 0x7FFFFB78) at 0x824D140C. Under our
round-robin lockstep the spinner consumed its whole block every round and
starved the co-located tid14 (only 9 progress hits over 200M instr) — so the
producer never reached the event-create/duplicate/signal dance the canary
oracle performs (handle F80000E8 set by the submitter F8000044 via a duplicated
handle).

Fix (canary-faithful): recognize the db16cyc spin hint exactly as canary's
InstrEmit_orx does (code 0x7FFFFB78 -> DelayExecution) and surface it as a new
StepResult::Yield. The scheduler's yield_current() promotes every Ready peer on
the slot past STARVE_LIMIT so begin_slot_visit picks one next round, then they
reset and the spinner reclaims the slot — fair alternation, no priority
inversion, pure function of slot state (deterministic).

Result (lockstep, cache-persist, -n 200M): tid14 progresses past its old stall
into a real wait; tid13 advances off 0x10a0 to a new event; hub/submitter
re-enter their wait loops. imports 280k->592k, packets 124M->164M, swaps 1->2.
draws still 0 (the splash's first draw is a further-upstream gate).

Determinism preserved (two cold n50m runs byte-identical). n50m golden
re-baselined (imports 90296->339766, swaps 1->2; draws unchanged 0). n2m
golden unchanged (db16cyc not reached in first 2M). Tests 670/670.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
MechaCat02
2026-06-13 10:38:17 +02:00
parent f3b7e8b760
commit de21c7a544
31 changed files with 433587 additions and 3 deletions
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89
audit-runs/audit-059-handle-disambiguation/round9-sub821B6DF4-caller/canary.stderr.sub821B55D8 Normal file
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warn: CreateDXGIFactory2: Ignoring flags
info: Game: xenia_canary.exe
info: DXVK: v2.7.1
info: Build: x86_64 gcc 15.1.0
info: Vulkan: Found vkGetInstanceProcAddr in winevulkan.dll @ 0x6ffffbfb4000
info: Extension providers:
info: Platform WSI
info: OpenVR
info: OpenVR: could not open registry key, status 2
info: OpenVR: Failed to locate module
info: OpenXR
info: Enabled instance extensions:
info: VK_EXT_surface_maintenance1
info: VK_KHR_get_surface_capabilities2
info: VK_KHR_surface
info: VK_KHR_win32_surface
info: Found device: NVIDIA GeForce GTX 1070 Ti (NVIDIA 580.159.3)
info: Found device: llvmpipe (LLVM 20.1.2, 256 bits) (llvmpipe 25.2.8)
info: Skipping: Software driver
info: DXGI: Hiding actual GPU, reporting:
info: vendor ID: 0x1002
info: device ID: 0x73df
warn: DxgiAdapter::QueryInterface: Unknown interface query
warn: f0db4c7f-fe5a-42a2-bd62-f2a6cf6fc83e
1217.108:00d4:0128:info:vkd3d-proton:vkd3d_instance_apply_application_workarounds: Program name: "xenia_canary.exe" (hash: c099ade372da5277)
1217.108:00d4:0128:info:vkd3d-proton:vkd3d_instance_deduce_config_flags_from_environment: shader_cache is used, global_pipeline_cache is enforced.
1217.108:00d4:0128:info:vkd3d-proton:vkd3d_config_flags_init_once: VKD3D_CONFIG=''.
1217.111:00d4:0128:info:vkd3d-proton:vkd3d_get_vk_version: vkd3d-proton - applicationVersion: 3.0.1.
1217.111:00d4:0128:info:vkd3d-proton:vkd3d_instance_init: vkd3d-proton - build: 3b10bd7a7ec6a73.
1217.160:00d4:0128:info:vkd3d-proton:vkd3d_init_device_caps: Not all relevant pipeline stages are supported by EXT_dgc. Skipping.
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_memory_info_decide_hvv_usage: Topology: Device heaps are split. Assuming small BAR situation.
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_memory_info_upload_hvv_memory_properties: Topology: HVV usage is not allowed, using HOST_COHERENT for UPLOAD.
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_get_bindless_flags: Device does not support VK_EXT_mutable_descriptor_type (or VALVE).
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.307:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.309:00d4:0128:info:vkd3d-proton:d3d12_device_caps_init_shader_model: Enabling support for SM 6.6.
1217.309:00d4:0128:fixme:vkd3d-proton:d3d12_device_caps_init_feature_options1: TotalLaneCount = 2432, may be inaccurate.
1217.309:00d4:0128:info:vkd3d-proton:d3d12_device_determine_ray_tracing_tier: DXR support enabled.
1217.309:00d4:0128:info:vkd3d-proton:vkd3d_pipeline_library_init_disk_cache: Remapping VKD3D_SHADER_CACHE to: vkd3d-proton.cache.
1217.309:00d4:0128:info:vkd3d-proton:vkd3d_pipeline_library_init_disk_cache: Attempting to load disk cache from: vkd3d-proton.cache.
1217.310:00d4:0140:info:vkd3d-proton:vkd3d_pipeline_library_disk_thread_main: Performing async setup of stream archive ...
1217.310:00d4:0140:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_merge: No write cache exists. No need to merge any disk caches.
1217.310:00d4:0140:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_initial_setup: Merging pipeline libraries took 0.166 ms.
1217.310:00d4:0140:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_initial_setup: Mapping read-only cache took 0.173 ms.
1217.310:00d4:0140:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_initial_setup: Parsing stream archive took 0.031 ms.
1217.310:00d4:0140:info:vkd3d-proton:vkd3d_pipeline_library_disk_thread_main: Done performing async setup of stream archive.
1217.360:00d4:0128:info:vkd3d-proton:vkd3d_get_vk_version: vkd3d-proton - applicationVersion: 3.0.1.
1217.360:00d4:0128:info:vkd3d-proton:vkd3d_instance_init: vkd3d-proton - build: 3b10bd7a7ec6a73.
1217.403:00d4:0128:info:vkd3d-proton:vkd3d_init_device_caps: Not all relevant pipeline stages are supported by EXT_dgc. Skipping.
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_memory_info_decide_hvv_usage: Topology: Device heaps are split. Assuming small BAR situation.
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_memory_info_upload_hvv_memory_properties: Topology: HVV usage is not allowed, using HOST_COHERENT for UPLOAD.
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_get_bindless_flags: Device does not support VK_EXT_mutable_descriptor_type (or VALVE).
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.515:00d4:0128:info:vkd3d-proton:vkd3d_bindless_state_add_binding: Device supports VK_EXT_descriptor_buffer!
1217.516:00d4:0128:info:vkd3d-proton:d3d12_device_caps_init_shader_model: Enabling support for SM 6.6.
1217.516:00d4:0128:fixme:vkd3d-proton:d3d12_device_caps_init_feature_options1: TotalLaneCount = 2432, may be inaccurate.
1217.516:00d4:0128:info:vkd3d-proton:d3d12_device_determine_ray_tracing_tier: DXR support enabled.
1217.516:00d4:0128:info:vkd3d-proton:vkd3d_pipeline_library_init_disk_cache: Remapping VKD3D_SHADER_CACHE to: vkd3d-proton.cache.
1217.516:00d4:0128:info:vkd3d-proton:vkd3d_pipeline_library_init_disk_cache: Attempting to load disk cache from: vkd3d-proton.cache.
1217.517:00d4:0148:info:vkd3d-proton:vkd3d_pipeline_library_disk_thread_main: Performing async setup of stream archive ...
1217.517:00d4:0148:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_merge: No write cache exists. No need to merge any disk caches.
1217.517:00d4:0148:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_initial_setup: Merging pipeline libraries took 0.157 ms.
1217.517:00d4:0148:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_initial_setup: Mapping read-only cache took 0.208 ms.
1217.518:00d4:0148:info:vkd3d-proton:vkd3d_pipeline_library_disk_cache_initial_setup: Parsing stream archive took 0.032 ms.
1217.518:00d4:0148:info:vkd3d-proton:vkd3d_pipeline_library_disk_thread_main: Done performing async setup of stream archive.
1217.524:00d4:0128:fixme:vkd3d-proton:d3d12_command_queue_init: Ignoring priority 0x64.
warn: DXGIGetDebugInterface1: Stub
info: DXGI: Hiding actual GPU, reporting:
info: vendor ID: 0x1002
info: device ID: 0x73df
1217.612:00d4:00d8:info:vkd3d-proton:dxgi_vk_swap_chain_init: Creating swapchain (1280 x 720), BufferCount = 3.
1217.622:00d4:00d8:info:vkd3d-proton:dxgi_vk_swap_chain_init_sync_objects: Ensure maximum latency of 3 frames with KHR_present_wait.
1217.622:00d4:00d8:info:vkd3d-proton:dxgi_vk_swap_chain_init_sleep_state: Timer interval is 1.0 ms.
warn: DXGI: MakeWindowAssociation: Ignoring flags
warn: DxgiOutput::WaitForVBlank: Inaccurate
info: Setting timer interval to 1000 us
1218.136:00d4:0150:info:vkd3d-proton:dxgi_vk_swap_chain_recreate_swapchain_in_present_task: Got 3 swapchain images.
1218.678:00d4:0158:fixme:vkd3d-proton:vkd3d_texture_view_desc_fixup: Remapping 2D to 2D_ARRAY. Needs Vulkan spec tightening to match D3D12 properly.
1218.699:00d4:0150:info:vkd3d-proton:dxgi_vk_swap_chain_recreate_swapchain_in_present_task: Got 3 swapchain images.