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handoff: VSync/event-wedge fixes + iterate 2.A–2.BC research notes

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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>
This commit is contained in:
MechaCat02
2026-06-05 07:19:08 +02:00
parent acd1656753
commit ef93a4fa14
620 changed files with 108303 additions and 1 deletions
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audit-runs/phase-c-first-divergence/phase-a/diff-report.md Normal file
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# Phase A diff report
**This report is the output of Phase A's diff harness. Divergences
shown here are INPUT for Phase B (first-divergence localization),
not findings of Phase A.** Phase A's job is to make the harness
itself correct, not to analyze what it surfaces.
## Summary
| canary_tid | ours_tid | matched | canary_total | ours_total | first_divergence_at |
|---|---|---|---|---|---|
| 6 | 1 | 113 | 329948 | 93048 | 113 |
## canary_tid=6 → ours_tid=1
First divergence at `tid_event_idx=113`: payload.return_value: canary=0 ours=1880095840
**Pre-context (last 5 matching events):**
```
canary: [108] import.call RtlLeaveCriticalSection
ours: [108] import.call RtlLeaveCriticalSection
canary: [109] kernel.call RtlLeaveCriticalSection
ours: [109] kernel.call RtlLeaveCriticalSection
canary: [110] kernel.return RtlLeaveCriticalSection
ours: [110] kernel.return RtlLeaveCriticalSection
canary: [111] import.call KeQuerySystemTime
ours: [111] import.call KeQuerySystemTime
canary: [112] kernel.call KeQuerySystemTime
ours: [112] kernel.call KeQuerySystemTime
```
**Divergent event:**
```
canary: [113] kernel.return KeQuerySystemTime
ours: [113] kernel.return KeQuerySystemTime
```
**Next event after the divergence (if any):**
```
canary: [114] import.call RtlInitializeCriticalSection
ours: [114] import.call RtlInitializeCriticalSection
```
**Raw events (JSON):**
```json
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 17344300, "kind": "kernel.return", "payload": {"name": "KeQuerySystemTime", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 6, "tid_event_idx": 113}
{"deterministic": true, "engine": "ours", "guest_cycle": 9415, "host_ns": 73190351, "kind": "kernel.return", "payload": {"name": "KeQuerySystemTime", "return_value": 1880095840, "side_effects": [], "status": "0x700ffc60"}, "schema_version": 1, "tid": 1, "tid_event_idx": 113}
```