ef93a4fa14
Source changes (dormant parity infra, retained from iterate 2.AI/2.AO): - xenia-kernel/exports.rs: nt_create_event manual_reset polarity + related event wiring - xenia-gpu/mmio_region.rs: D1MODE_VBLANK_VLINE_STATUS hardcode parity Also lands the audit-runs/ analysis notes (.md/.txt/.json digests) for the iterate 2.x VSync/0x10e8/0x1004 wedge investigation. Raw trace dumps (.jsonl/.gz/.csv/.stdout) and agent worktrees (.claude/) are gitignored as regenerable local artifacts — see memory + HANDOFF for the running findings. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
51 lines
2.4 KiB
Markdown
51 lines
2.4 KiB
Markdown
# Phase A diff report
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**This report is the output of Phase A's diff harness. Divergences
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shown here are INPUT for Phase B (first-divergence localization),
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not findings of Phase A.** Phase A's job is to make the harness
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itself correct, not to analyze what it surfaces.
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## Summary
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| canary_tid | ours_tid | matched | canary_total | ours_total | first_divergence_at | floating_create (c/o) | floating_wait (c/o) |
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|---|---|---|---|---|---|---|---|
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| 6 | 1 | 105138 | 476943 | 108507 | 105138 | 0/0 | 1/0 |
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*`floating_create (c/o)` counts shared-global `handle.create` events absorbed by Phase C+18 cross-tid SID matching. `floating_wait (c/o)` counts `wait.begin` events on shared-global dispatchers absorbed by Phase C+21 (scheduling-jitter window — canary's contention slow path may fire while ours fast-paths or vice versa). See schema-v1.md §"Shared-global SIDs" and §"Wait-begin floating absorb".*
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## canary_tid=6 → ours_tid=1
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First divergence at `tid_event_idx=105138`: payload.return_value: canary=3 ours=0
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**Pre-context (last 5 matching events):**
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```
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canary: [105140] import.call VdQueryVideoMode
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ours: [105133] import.call VdQueryVideoMode
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canary: [105141] kernel.call VdQueryVideoMode
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ours: [105134] kernel.call VdQueryVideoMode
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canary: [105142] kernel.return VdQueryVideoMode
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ours: [105135] kernel.return VdQueryVideoMode
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canary: [105143] import.call VdQueryVideoFlags
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ours: [105136] import.call VdQueryVideoFlags
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canary: [105144] kernel.call VdQueryVideoFlags
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ours: [105137] kernel.call VdQueryVideoFlags
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```
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**Divergent event:**
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```
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canary: [105145] kernel.return VdQueryVideoFlags
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ours: [105138] kernel.return VdQueryVideoFlags
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```
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**Next event after the divergence (if any):**
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```
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canary: [105146] import.call VdCallGraphicsNotificationRoutines
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ours: [105139] import.call VdCallGraphicsNotificationRoutines
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```
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**Raw events (JSON):**
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```json
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{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 1603555700, "kind": "kernel.return", "payload": {"name": "VdQueryVideoFlags", "return_value": 3, "side_effects": [], "status": "0x00000003"}, "schema_version": 1, "tid": 6, "tid_event_idx": 105145}
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{"deterministic": true, "engine": "ours", "guest_cycle": 5544516, "host_ns": 480313469, "kind": "kernel.return", "payload": {"name": "VdQueryVideoFlags", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 1, "tid_event_idx": 105138}
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```
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