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>
5.9 KiB
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 | floating_create (c/o) | floating_wait (c/o) |
|---|---|---|---|---|---|---|---|
| 4 | 11 | 11 | 20000 | 11 | — | 0/0 | 0/0 |
| 6 | 1 | 104607 | 250000 | 108507 | 104607 | 0/0 | 0/0 |
| 7 | 2 | 32 | 32 | 33 | — | 0/0 | 0/0 |
| 12 | 7 | 3 | 20000 | 5 | 3 | 0/0 | 0/0 |
| 14 | 9 | 41 | 20000 | 77 | 41 | 0/0 | 0/0 |
| 15 | 10 | 16 | 20000 | 17 | — | 0/1 | 0/0 |
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".
canary_tid=4 → ours_tid=11
No divergence within the 11 compared events (canary has 20000, ours has 11).
canary_tid=6 → ours_tid=1
First divergence at tid_event_idx=104607: payload.ord: canary=293 ours=304
Pre-context (last 5 matching events):
canary: [104602] kernel.call RtlLeaveCriticalSection
ours: [104602] kernel.call RtlLeaveCriticalSection
canary: [104603] kernel.return RtlLeaveCriticalSection
ours: [104603] kernel.return RtlLeaveCriticalSection
canary: [104604] import.call RtlEnterCriticalSection
ours: [104604] import.call RtlEnterCriticalSection
canary: [104605] kernel.call RtlEnterCriticalSection
ours: [104605] kernel.call RtlEnterCriticalSection
canary: [104606] kernel.return RtlEnterCriticalSection
ours: [104606] kernel.return RtlEnterCriticalSection
Divergent event:
canary: [104607] import.call RtlEnterCriticalSection
ours: [104607] import.call RtlLeaveCriticalSection
Next event after the divergence (if any):
canary: [104608] kernel.call RtlEnterCriticalSection
ours: [104608] kernel.call RtlLeaveCriticalSection
Raw events (JSON):
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 1530688000, "kind": "import.call", "payload": {"module": "xboxkrnl.exe", "name": "RtlEnterCriticalSection", "ord": 293}, "schema_version": 1, "tid": 6, "tid_event_idx": 104607}
{"deterministic": true, "engine": "ours", "guest_cycle": 5517276, "host_ns": 493469863, "kind": "import.call", "payload": {"module": "xboxkrnl.exe", "name": "RtlLeaveCriticalSection", "ord": 304}, "schema_version": 1, "tid": 1, "tid_event_idx": 104607}
canary_tid=7 → ours_tid=2
No divergence within the 32 compared events (canary has 32, ours has 33).
canary_tid=12 → ours_tid=7
First divergence at tid_event_idx=3: payload.timeout_ns: canary=-30000000 ours=429466729600
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
canary: [2] handle.create sid=c49d8f0ab90401ea
ours: [2] handle.create sid=6e3d96c5a52bf429
Divergent event:
canary: [3] wait.begin {'handles_semantic_ids': ['c49d8f0ab90401ea'], 'timeout_ns': -30000000, 'alertable': False, 'wait_type': 'any'}
ours: [3] wait.begin {'handles_semantic_ids': ['6e3d96c5a52bf429'], 'timeout_ns': 429466729600, 'alertable': False, 'wait_type': 'any'}
Next event after the divergence (if any):
canary: [4] kernel.return KeWaitForSingleObject
ours: [4] kernel.return KeWaitForSingleObject
Raw events (JSON):
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 1616406900, "kind": "wait.begin", "payload": {"alertable": false, "handles_semantic_ids": ["c49d8f0ab90401ea"], "timeout_ns": -30000000, "wait_type": "any"}, "schema_version": 1, "tid": 12, "tid_event_idx": 3}
{"deterministic": true, "engine": "ours", "guest_cycle": 0, "host_ns": 502700532, "kind": "wait.begin", "payload": {"alertable": false, "handles_semantic_ids": ["6e3d96c5a52bf429"], "timeout_ns": 429466729600, "wait_type": "any"}, "schema_version": 1, "tid": 7, "tid_event_idx": 3}
canary_tid=14 → ours_tid=9
First divergence at tid_event_idx=41: payload.ord: canary=503 ours=293
Pre-context (last 5 matching events):
canary: [36] kernel.call KeReleaseSpinLockFromRaisedIrql
ours: [36] kernel.call KeReleaseSpinLockFromRaisedIrql
canary: [37] kernel.return KeReleaseSpinLockFromRaisedIrql
ours: [37] kernel.return KeReleaseSpinLockFromRaisedIrql
canary: [38] import.call KfLowerIrql
ours: [38] import.call KfLowerIrql
canary: [39] kernel.call KfLowerIrql
ours: [39] kernel.call KfLowerIrql
canary: [40] kernel.return KfLowerIrql
ours: [40] kernel.return KfLowerIrql
Divergent event:
canary: [41] import.call XAudioGetVoiceCategoryVolumeChangeMask
ours: [41] import.call RtlEnterCriticalSection
Next event after the divergence (if any):
canary: [42] kernel.call XAudioGetVoiceCategoryVolumeChangeMask
ours: [42] kernel.call RtlEnterCriticalSection
Raw events (JSON):
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 1831030300, "kind": "import.call", "payload": {"module": "xboxkrnl.exe", "name": "XAudioGetVoiceCategoryVolumeChangeMask", "ord": 503}, "schema_version": 1, "tid": 14, "tid_event_idx": 41}
{"deterministic": true, "engine": "ours", "guest_cycle": 417, "host_ns": 1711325930, "kind": "import.call", "payload": {"module": "xboxkrnl.exe", "name": "RtlEnterCriticalSection", "ord": 293}, "schema_version": 1, "tid": 9, "tid_event_idx": 41}
canary_tid=15 → ours_tid=10
No divergence within the 16 compared events (canary has 20000, ours has 17).