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>
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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 |
|---|---|---|---|---|---|
| 4 | 11 | 9 | 20000 | 9 | — |
| 6 | 1 | 103862 | 250000 | 108471 | 103862 |
| 7 | 2 | 29 | 29 | 30 | — |
| 12 | 7 | 2 | 10532 | 3 | 2 |
| 14 | 9 | 39 | 20000 | 75 | 39 |
| 15 | 10 | 15 | 20000 | 15 | — |
canary_tid=4 → ours_tid=11
No divergence within the 9 compared events (canary has 20000, ours has 9).
canary_tid=6 → ours_tid=1
First divergence at tid_event_idx=103862: payload.return_value: canary=18446744072635809844 ours=0
Pre-context (last 5 matching events):
canary: [103857] import.call RtlInitAnsiString
ours: [103857] import.call RtlInitAnsiString
canary: [103858] kernel.call RtlInitAnsiString
ours: [103858] kernel.call RtlInitAnsiString
canary: [103859] kernel.return RtlInitAnsiString
ours: [103859] kernel.return RtlInitAnsiString
canary: [103860] import.call NtCreateFile
ours: [103860] import.call NtCreateFile
canary: [103861] kernel.call NtCreateFile
ours: [103861] kernel.call NtCreateFile
Divergent event:
canary: [103862] kernel.return NtCreateFile
ours: [103862] kernel.return NtCreateFile
Next event after the divergence (if any):
canary: [103863] import.call RtlNtStatusToDosError
ours: [103863] import.call RtlEnterCriticalSection
Raw events (JSON):
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 805501600, "kind": "kernel.return", "payload": {"name": "NtCreateFile", "return_value": 18446744072635809844, "side_effects": [], "status": "0xc0000034"}, "schema_version": 1, "tid": 6, "tid_event_idx": 103862}
{"deterministic": true, "engine": "ours", "guest_cycle": 5470532, "host_ns": 463681670, "kind": "kernel.return", "payload": {"name": "NtCreateFile", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 1, "tid_event_idx": 103862}
canary_tid=7 → ours_tid=2
No divergence within the 29 compared events (canary has 29, ours has 30).
canary_tid=12 → ours_tid=7
First divergence at tid_event_idx=2: payload.return_value: canary=258 ours=0
Pre-context (last 5 matching events):
canary: [0] import.call KeWaitForSingleObject
ours: [0] import.call KeWaitForSingleObject
canary: [1] kernel.call KeWaitForSingleObject
ours: [1] kernel.call KeWaitForSingleObject
Divergent event:
canary: [2] kernel.return KeWaitForSingleObject
ours: [2] kernel.return KeWaitForSingleObject
Next event after the divergence (if any):
canary: [3] import.call RtlEnterCriticalSection
ours: <end of stream>
Raw events (JSON):
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 935048400, "kind": "kernel.return", "payload": {"name": "KeWaitForSingleObject", "return_value": 258, "side_effects": [], "status": "0x00000102"}, "schema_version": 1, "tid": 12, "tid_event_idx": 2}
{"deterministic": true, "engine": "ours", "guest_cycle": 30, "host_ns": 479443976, "kind": "kernel.return", "payload": {"name": "KeWaitForSingleObject", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 7, "tid_event_idx": 2}
canary_tid=14 → ours_tid=9
First divergence at tid_event_idx=39: payload.ord: canary=503 ours=293
Pre-context (last 5 matching events):
canary: [34] kernel.call KeReleaseSpinLockFromRaisedIrql
ours: [34] kernel.call KeReleaseSpinLockFromRaisedIrql
canary: [35] kernel.return KeReleaseSpinLockFromRaisedIrql
ours: [35] kernel.return KeReleaseSpinLockFromRaisedIrql
canary: [36] import.call KfLowerIrql
ours: [36] import.call KfLowerIrql
canary: [37] kernel.call KfLowerIrql
ours: [37] kernel.call KfLowerIrql
canary: [38] kernel.return KfLowerIrql
ours: [38] kernel.return KfLowerIrql
Divergent event:
canary: [39] import.call XAudioGetVoiceCategoryVolumeChangeMask
ours: [39] import.call RtlEnterCriticalSection
Next event after the divergence (if any):
canary: [40] kernel.call XAudioGetVoiceCategoryVolumeChangeMask
ours: [40] kernel.call RtlEnterCriticalSection
Raw events (JSON):
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 1106484200, "kind": "import.call", "payload": {"module": "xboxkrnl.exe", "name": "XAudioGetVoiceCategoryVolumeChangeMask", "ord": 503}, "schema_version": 1, "tid": 14, "tid_event_idx": 39}
{"deterministic": true, "engine": "ours", "guest_cycle": 417, "host_ns": 1658972624, "kind": "import.call", "payload": {"module": "xboxkrnl.exe", "name": "RtlEnterCriticalSection", "ord": 293}, "schema_version": 1, "tid": 9, "tid_event_idx": 39}
canary_tid=15 → ours_tid=10
No divergence within the 15 compared events (canary has 20000, ours has 15).