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

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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# 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 | 5 | 47573 | 9 | 5 |
| 6 | 1 | 102032 | 329948 | 108492 | 102032 |
| 7 | 2 | 2 | 29 | 33 | 2 |
| 12 | 7 | 2 | 6689 | 3 | 2 |
| 14 | 9 | 11 | 1371603 | 75 | 11 |
| 15 | 10 | 15 | 863209 | 15 | — |
## canary_tid=4 → ours_tid=11
First divergence at `tid_event_idx=5`: payload.return_value: canary=1 ours=0
**Pre-context (last 5 matching events):**
```
canary: [0] import.call RtlEnterCriticalSection
ours: [0] import.call RtlEnterCriticalSection
canary: [1] kernel.call RtlEnterCriticalSection
ours: [1] kernel.call RtlEnterCriticalSection
canary: [2] kernel.return RtlEnterCriticalSection
ours: [2] kernel.return RtlEnterCriticalSection
canary: [3] import.call KeSetEvent
ours: [3] import.call KeSetEvent
canary: [4] kernel.call KeSetEvent
ours: [4] kernel.call KeSetEvent
```
**Divergent event:**
```
canary: [5] kernel.return KeSetEvent
ours: [5] kernel.return KeSetEvent
```
**Next event after the divergence (if any):**
```
canary: [6] import.call KeWaitForMultipleObjects
ours: [6] import.call KeWaitForMultipleObjects
```
**Raw events (JSON):**
```json
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 1080594600, "kind": "kernel.return", "payload": {"name": "KeSetEvent", "return_value": 1, "side_effects": [], "status": "0x00000001"}, "schema_version": 1, "tid": 4, "tid_event_idx": 5}
{"deterministic": true, "engine": "ours", "guest_cycle": 33, "host_ns": 1630359955, "kind": "kernel.return", "payload": {"name": "KeSetEvent", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 11, "tid_event_idx": 5}
```
## canary_tid=6 → ours_tid=1
First divergence at `tid_event_idx=102032`: payload.return_value: canary=1 ours=0
**Pre-context (last 5 matching events):**
```
canary: [102027] import.call XeCryptSha
ours: [102027] import.call XeCryptSha
canary: [102028] kernel.call XeCryptSha
ours: [102028] kernel.call XeCryptSha
canary: [102029] kernel.return XeCryptSha
ours: [102029] kernel.return XeCryptSha
canary: [102030] import.call XeKeysConsolePrivateKeySign
ours: [102030] import.call XeKeysConsolePrivateKeySign
canary: [102031] kernel.call XeKeysConsolePrivateKeySign
ours: [102031] kernel.call XeKeysConsolePrivateKeySign
```
**Divergent event:**
```
canary: [102032] kernel.return XeKeysConsolePrivateKeySign
ours: [102032] kernel.return XeKeysConsolePrivateKeySign
```
**Next event after the divergence (if any):**
```
canary: [102033] import.call NtReadFile
ours: [102033] import.call NtReadFile
```
**Raw events (JSON):**
```json
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 716092100, "kind": "kernel.return", "payload": {"name": "XeKeysConsolePrivateKeySign", "return_value": 1, "side_effects": [], "status": "0x00000001"}, "schema_version": 1, "tid": 6, "tid_event_idx": 102032}
{"deterministic": true, "engine": "ours", "guest_cycle": 5364046, "host_ns": 467464101, "kind": "kernel.return", "payload": {"name": "XeKeysConsolePrivateKeySign", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 1, "tid_event_idx": 102032}
```
## canary_tid=7 → ours_tid=2
First divergence at `tid_event_idx=2`: payload.return_value: canary=0 ours=1896873464
**Pre-context (last 5 matching events):**
```
canary: [0] import.call RtlInitAnsiString
ours: [0] import.call RtlInitAnsiString
canary: [1] kernel.call RtlInitAnsiString
ours: [1] kernel.call RtlInitAnsiString
```
**Divergent event:**
```
canary: [2] kernel.return RtlInitAnsiString
ours: [2] kernel.return RtlInitAnsiString
```
**Next event after the divergence (if any):**
```
canary: [3] import.call NtCreateFile
ours: [3] import.call NtCreateFile
```
**Raw events (JSON):**
```json
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 728945300, "kind": "kernel.return", "payload": {"name": "RtlInitAnsiString", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 7, "tid_event_idx": 2}
{"deterministic": true, "engine": "ours", "guest_cycle": 2475, "host_ns": 468355955, "kind": "kernel.return", "payload": {"name": "RtlInitAnsiString", "return_value": 1896873464, "side_effects": [], "status": "0x710ffdf8"}, "schema_version": 1, "tid": 2, "tid_event_idx": 2}
```
## 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):**
```json
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 904485700, "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": 495151234, "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=11`: payload.return_value: canary=2 ours=0
**Pre-context (last 5 matching events):**
```
canary: [6] import.call KeAcquireSpinLockAtRaisedIrql
ours: [6] import.call KeAcquireSpinLockAtRaisedIrql
canary: [7] kernel.call KeAcquireSpinLockAtRaisedIrql
ours: [7] kernel.call KeAcquireSpinLockAtRaisedIrql
canary: [8] kernel.return KeAcquireSpinLockAtRaisedIrql
ours: [8] kernel.return KeAcquireSpinLockAtRaisedIrql
canary: [9] import.call KeRaiseIrqlToDpcLevel
ours: [9] import.call KeRaiseIrqlToDpcLevel
canary: [10] kernel.call KeRaiseIrqlToDpcLevel
ours: [10] kernel.call KeRaiseIrqlToDpcLevel
```
**Divergent event:**
```
canary: [11] kernel.return KeRaiseIrqlToDpcLevel
ours: [11] kernel.return KeRaiseIrqlToDpcLevel
```
**Next event after the divergence (if any):**
```
canary: [12] import.call KeRaiseIrqlToDpcLevel
ours: [12] import.call KeRaiseIrqlToDpcLevel
```
**Raw events (JSON):**
```json
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 1081453000, "kind": "kernel.return", "payload": {"name": "KeRaiseIrqlToDpcLevel", "return_value": 2, "side_effects": [], "status": "0x00000002"}, "schema_version": 1, "tid": 14, "tid_event_idx": 11}
{"deterministic": true, "engine": "ours", "guest_cycle": 77, "host_ns": 1630401706, "kind": "kernel.return", "payload": {"name": "KeRaiseIrqlToDpcLevel", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 9, "tid_event_idx": 11}
```
## canary_tid=15 → ours_tid=10
No divergence within the 15 compared events (canary has 863209, ours has 15).