Harness round. Every launched run is in Saved/HarnessFixAcceptance_20260914.ledger.txt.
- FVoxelStackSampler: two sampler-on runs had died in EndPlay (logs stop after "workers drained",
before the latency summary). The lifecycle teardown is now serialised, registration TLS is
tagged by session, stale worker registrations are cleared safely, and in-process DbgHelp
initialisation/symbolisation is REMOVED. The measured process now writes raw PCs only; symbol
resolution is deferred to after process exit. (An offline symboliser is still needed for
readable tables; it is queued first in the next round.)
- voxel.WormBlockSkip default 1 -> 0: it measured neutral (26b3476). The code, the proven bound
and the soundness test are kept for a tighter skip later.
- Harness (Saved/*.ps1, not tracked): a writable DDC under the plugin's Saved\DDC with
-ddc=NoZenLocalFallback, fixing the DerivedDataBackends.cpp:208 startup fatal. UE 5.7 Windows
was verified NOT to honour -nocrashreports for its startup monitor, so the harness runs
unattended with dialogs forced off plus a PID-scoped CrashReportClient watchdog. Failures
still exit non-zero, and a run without its final summary line is rejected.
Acceptance: 10 consecutive mixed runs, 7 of them sampler-on, all PASS; no new crash folders, dumps,
dialogs or lingering processes. Other runs: one smoke run failed on a PowerShell
HashSet.ToArray() compatibility bug in the harness (Unreal itself exited cleanly); its retries and
the export passed. Export OBJ unchanged (b3e5f4c3..9b377).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TaFdXhTdYMkW1xrV6ApT6Y
Fr0zkaandClaude Opus 5
11f0c1335b