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>
2.8 KiB
Phase C+8 — KeResetEvent re-validation
Gate matrix
| # | gate | result |
|---|---|---|
| 1 | cvar-OFF determinism 50M (3 runs) | PASS — all 3 = c6d895829b4611964978990ae1cb8a6a (unchanged from C+7 baseline; coarse 50M stable-digest fields don't yet see the post-102164 trajectory) |
| 2 | Phase B image_loaded_sha256 |
PASS — ea8d160e9369328a5b922258a92113efb8d7ce3e1a5c12cc521e375985c91c18 (matches baseline; image_canonical_sha256 computed at diff-time depends only on the XEX loader which is untouched, so still 62c51908...) |
| 3 | Phase A main chain matched-prefix > 102164 | PASS — 102197 (+33 from 102164) |
| 3b | tid=4 -> 11 unchanged | PASS — 9 (no regression) |
| 3c | tid=7 -> 2 unchanged | PASS — 29 (no regression) |
| 3d | tid=12 -> 7 unchanged | PASS — 2 (no regression) |
| 3e | tid=14 -> 9 unchanged | PASS — 39 (no regression) |
| 3f | tid=15 -> 10 unchanged | PASS — 15 (no regression) |
| 4 | Build clean | PASS (1 unrelated walk_committed_regions dead-code warning, pre-existing) |
| 5 | Phase A emitter determinism (2 runs) | PASS — both deterministic-fields md5 = 9135e369547111096f2c6d2be130dbb1 |
| 6 | Unit tests | PASS — 156 -> 160 (+4 new, 0 regressions) |
Stable-digest comparison
Baseline (C+7 XamTaskCloseHandle): digest 50M c6d895829b4611964978990ae1cb8a6a.
Post C+8 KeResetEvent: identical. The two changes (return value at 102164,
downstream events) sit inside the matched window and don't yet move
coarse counters (instructions=50M, imports=40470, unimpl=0, draws=0,
swaps=1, unique_render_targets=0, shader_blobs_live=0, texture_cache_entries=0).
This is the same coarseness pattern observed in C+7-precursor.
Phase A determinism
ours.jsonl (run 1) det-fields md5: 9135e369547111096f2c6d2be130dbb1
ours-determ.jsonl (run 2) : 9135e369547111096f2c6d2be130dbb1
Byte-identical on deterministic fields. New --phase-a det baseline
(9135e369...), replacing C+7's eca3ac9a... baseline. Change is the
return_value flip at idx=102164 (0 -> 1) cascading into a different
event sequence inside the matched window after 102164.
Per-chain summary
| chain | C+7 XamTaskCloseHandle | C+8 KeResetEvent | delta |
|---|---|---|---|
| canary tid=6 -> ours tid=1 (main) | 102164 | 102197 | +33 |
| canary tid=4 -> ours tid=11 | 9 | 9 | 0 (sister at end of ours window) |
| canary tid=7 -> ours tid=2 | 29 | 29 | 0 (sister at end of ours window) |
| canary tid=12 -> ours tid=7 | 2 | 2 | 0 (different bug: KeWaitForSingleObject ret 258 vs 0) |
| canary tid=14 -> ours tid=9 | 39 | 39 | 0 (different bug: XAudio vs RtlEnterCS) |
| canary tid=15 -> ours tid=10 | 15 | 15 | 0 |
All gates pass. No regressions.
Next target
XamContentCreateEnumerator at tid=6->1 idx=102197:
- canary return_value=1317 (0x525 = X_ERROR_NO_CONTENT)
- ours return_value=0