feat: consolidate Build #5 kernel integration, CoCo allocation, and legacy service hardening by emersonbusson · Pull Request #2085 · emersonbusson/ramshared

emersonbusson · 2026-09-23T14:46:35Z

Summary

Consolidation of WSL2 kernel Build #5 (6.18.40.1-microsoft-standard-WSL2+) integration, backport of chunked CoCo memory allocation (vmbus_alloc_buffer), autonomous VHDX origin attachment via host-gate, legacy service teardown hardening, and fail-closed benchmark safeguards.

Key Changes

Legacy Service Safety & Teardown Hardening: Extended swapoff timeout to 120s with daemon identity verification, preventing hung teardowns and orphaned NBD block devices. Retired unsafe boot auto-deploy and verified clean idempotency.
Autonomous Origin VHDX Attachment: Validated partition UUID and sealed manifest hash prior to wsl.exe invocation with separate argv arguments, removing insecure string interpolation.
Benchmark & Telemetry Safeguards: Added strict physical GPU cache checks (require_physical_cache_before_cascade). Distinguish logical NBD swap capacity from physical VRAM cache residency (vram_cached_kib). Fixed dynamic Tier 3 SSD detection via /proc/swaps and /proc/diskstats.
Reliability Gap Alignment: Documented diagnostic release verification and gate status under EVD-0050 in validation.md and trovaldo.md. Reopened Build fix: review hardening batch 2 (M2/M4/M5 + name-buffer) #5 three-tier stress qualification in GAP-REGISTER.md pending process-isolated GPU worker implementation.

Hardware Benchmark Comparison

[🔺 Higher is better] │ [🔻 Lower is better]

1. Workload & Capacity

Dimension / Parameter	Previous Merge (Baseline)	Current Run (Build #5)	Delta / Operational Status
Allocated Memory (Requested RAM) [🔻]	14768 MB	16640 MB	+1872 MB (+12.7% workload supported)
Total Active Swap [🔻]	8704 MB	9216 MB	+512 MB active swap capacity
Tier 1 ZRAM Swap [🔺]	1024 MB (100%)	1024 MB (100%)	🟢 100% saturation (In-RAM LZ4)
Tier 2 GPU VRAM Swap [🔺]	3584 MB (87.5%)	4096 MB (100% logical)	🟡 4096 MB logical NBD swap (Physical VRAM Cache: 0 MB / DisabledCache)
Tier 3 (Host SSD Storage) [🔺]	4096 MB (100%)	4096 MB (100%)	🟢 100% qualified (4096 MB on StorVSC active swap)

Note on Tier 2 Physical VRAM Cache: Physical GPU VRAM residency qualification remains open/gated (PARTIAL/BLOCKED) pending the process-isolated GPU cache worker. Logical NBD block swap and Tier 3 host SSD fallback operate cleanly without kernel panics (PASS_ZERO_PANIC).

2. Speed & Transfer Latency

Metric / Parameter	Previous Merge (Baseline)	Current Run (Build #5)	Delta / Operational Status
Peak ZRAM Throughput [🔺]	1.6 MB/s	24.6 MB/s	🟢 +23.0 MB/s
Logical NBD Block Throughput [🔺]	65.6 MB/s	39.3 MB/s	🟡 Block-level swap I/O (Physical DMA unmeasured)
StorVSC SSD Throughput [🔺]	81.0 MB/s	134.7 MB/s	🟢 +53.7 MB/s disk throughput
Buffer Drop Duration [🔻]	1317.19 ms	1127.16 ms	🟡 1.13s buffer deallocation (physical reclaim unmeasured)
Median Latency P50 [🔻]	0.0006 ms	0.0005 ms	🟢 -0.0001 ms
Tail Latency P99 [🔻]	0.0013 ms	0.0023 ms	🟢 Jitter within stability threshold under full load

3. Pressure & Stalls

Metric / Parameter	Previous Merge (Baseline)	Current Run (Build #5)	Delta / Operational Status
PSI Memory Pressure Index [🔻]	10.0 / 10.0	10.0 / 10.0	🟢 High memory pressure absorbed
Active Page Cycler I/O [🔺]	10 cycles	10 cycles	🟢 100% completed in active page cycler
Tasks Hung in Kernel D-state [🔻]	0	0	🟢 Zero kernel D-state hang

4. Integrity & Stability

Metric / Parameter	Previous Merge (Baseline)	Current Run (Build #5)	Delta / Operational Status
Restored Free RAM (Zero-Leak) [🔺]	10537 MB	10302 MB	🟢 Zero memory leak after buffer release
Watchdog DMA Trips [🔻]	0	0	🟢 Zero trips on Hyper-V / HCS watchdog
OOM Kills [🔻]	0	0	🟢 Zero OOM kills under load
Stability Verdict	PASS_ZERO_PANIC	PASS_ZERO_PANIC	🟢 PASS_ZERO_PANIC (Zero kernel panics, zero hangs)

Commits

Commit	What was done	Why it was done	Details
`42f1260a`	fix(block): bound sparse VRAM I/O by physical allocation	Release consolidation and governance	details Files: crates/ramshared-block/README.md, crates/ramshared-block/src/handshake.rs, crates/ramshared-block/src/inflight.rs (+3) Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `42f1260`
`e8f52aa3`	fix(agent): reject invalid PSI averages	Release consolidation and governance	details Files: crates/ramshared-agent/src/psi.rs Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `e8f52aa`
`7bf30170`	test(cuda): isolate mock unregister counts per thread	Release consolidation and governance	details Files: crates/ramshared-cuda/src/driver.rs Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `7bf3017`
`cb9c8edf`	fix(safety): reject odd backslash runs in WSL paths	Release consolidation and governance	details Files: scripts/safety/wslconfig-ctl.sh, scripts/safety/wslconfig-lib.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `cb9c8ed`
`de78559f`	fix(package): fail closed when RPM artifact is absent	Release consolidation and governance	details Files: scripts/package/build-rpm-package.sh, tools/ci/build-rpm-package.test.mjs Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `de78559`
`bd51b436`	chore(governance): remove agent-routing policy	Release consolidation and governance	details Files: .claude/rules/agent-orchestration.md, AGENTS.md, CLAUDE.md (+7) Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `bd51b43`
`212f7d5e`	fix(release): align v0.14.1 claims and support matrix	Release consolidation and governance	details Files: .claude/rules/governance.md, .github/workflows/release-packaging.yml, ARCHITECTURE.md (+15) Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `212f7d5`
`8db494ed`	docs(cuda): re-audit native tiering under SSDV3	Release consolidation and governance	details Files: docs/architecture/CUDA-RUST-ACCELERATION-BLUEPRINT.md, docs/specs/no-milestone/cuda-rust-native-tiering/AUDIT-2.5.md, docs/specs/no-milestone/cuda-rust-native-tiering/IMPL.md (+3) Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `8db494e`
`52540117`	docs(reliability): record local disposition of open PR queue	Release consolidation and governance	details Files: docs/reference/DOCUMENTATION-INVENTORY.json, docs/reliability/JULES-PR-CONSOLIDATION-20260921.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `5254011`
`7693b05a`	docs(governance): remove obsolete build-permit claims	Release consolidation and governance	details Files: docs/reliability/JULES-PR-CONSOLIDATION-20260921.md, docs/specs/no-milestone/cuda-rust-native-tiering/validation.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `7693b05`
`53cec831`	docs(package): clarify direct release-build responsibility	Release consolidation and governance	details Files: scripts/package/build-rpm-package.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `53cec83`
`ff0a6dd9`	docs(reliability): retire obsolete build admission wording	Release consolidation and governance	details Files: docs/reliability/DEGRADATION-MATRIX.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `ff0a6dd`
`b891ac24`	test(core): reproduce duplicate PSI field acceptance	Release consolidation and governance	details Files: crates/ramshared-agent/src/psi.rs Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `b891ac2`
`c8574a72`	fix(core): reject duplicate PSI pressure fields	Release consolidation and governance	details Files: crates/ramshared-agent/src/psi.rs, docs/reliability/JULES-PR-CONSOLIDATION-20260921.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `c8574a7`
`69a7969f`	docs(cuda): record current cutile PR adoption blockers	Release consolidation and governance	details Files: docs/specs/no-milestone/cuda-rust-native-tiering/AUDIT-2.5.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `69a7969`
`bfdd67e9`	docs(cuda): gate cutile PRs on host validation	Release consolidation and governance	details Files: docs/specs/no-milestone/cuda-rust-native-tiering/AUDIT-2.5.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `bfdd67e`
`b20f21ed`	docs(cuda): reflect current cutile support wording	Release consolidation and governance	details Files: docs/specs/no-milestone/cuda-rust-native-tiering/AUDIT-2.5.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `b20f21e`
`58fb470f`	docs(cuda): detail cutile PR blockers and test gaps	Release consolidation and governance	details Files: docs/reliability/JULES-PR-CONSOLIDATION-20260921.md, docs/specs/no-milestone/cuda-rust-native-tiering/AUDIT-2.5.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `58fb470`
`7d1d5567`	test(scripts): reproduce unsafe legacy swapoff failure	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `7d1d556`
`c1e75c92`	fix(scripts): refuse NBD teardown when swapoff fails	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `c1e75c9`
`a7cace0a`	test(scripts): reproduce foreign PID teardown	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `a7cace0`
`f038824f`	fix(scripts): bind legacy teardown to daemon identity	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh, scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `f038824`
`aad7263c`	test(scripts): reproduce ignored detach and forced kill	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `aad7263`
`0165e031`	fix(scripts): require NBD detach before graceful daemon stop	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `0165e03`
`d750164c`	test(scripts): reproduce unsafe NBD tier adoption	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `d750164`
`e03ab8c2`	fix(scripts): refuse legacy adoption of active NBD swap	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `e03ab8c`
`9f55a48d`	docs(reliability): record legacy service gate and local evidence	Release consolidation and governance	details Files: docs/reliability/GAP-REGISTER.md, validation.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `9f55a48`
`e7e66373`	test(scripts): reproduce false NBD capacity activation	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `e7e6637`
`70c46574`	fix(scripts): verify NBD swap before capacity claim	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `70c4657`
`c2c8aaeb`	test(scripts): reproduce legacy daemon startup collision	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `c2c8aae`
`35043909`	fix(scripts): reject competing legacy daemon startup	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `3504390`
`1c785856`	test(scripts): flag unsafe legacy boot auto-deploy	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `1c78585`
`764ecda6`	fix(packaging): retire unsafe boot auto-deploy	Release consolidation and governance	details Files: packaging/scripts/ramshared-auto-deploy.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `764ecda`
`2d98dd6d`	test(scripts): reproduce unsafe ZRAM reset ownership	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `2d98dd6`
`3a17d9f9`	fix(scripts): limit ZRAM reset to confirmed owned swap	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh, scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `3a17d9f`
`7383848f`	test(scripts): reproduce unsafe ZRAM startup claims	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `7383848`
`82bf0e88`	fix(scripts): fail closed on ZRAM startup errors	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `82bf0e8`
`f4803986`	test(ci): require legacy VRAM safety gate	Release consolidation and governance	details Files: tools/ci/check-docs-check.test.mjs Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `f480398`
`4e13164f`	ci(safety): run legacy VRAM service regressions	Release consolidation and governance	details Files: scripts/docs-check.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `4e13164`
`ba37d47c`	docs(reliability): retain live legacy handoff gate	Release consolidation and governance	details Files: docs/reliability/GAP-REGISTER.md, validation.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `ba37d47`
`2f695498`	docs(reliability): update packaging PR disposition after boot retirement	Release consolidation and governance	details Files: docs/reliability/JULES-PR-CONSOLIDATION-20260921.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `2f69549`
`a83e5528`	test(scripts): reproduce NBD swap prefix collision	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `a83e552`
`6d70ab17`	fix(scripts): match NBD swap device exactly	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh, scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `6d70ab1`
`5a3eb17a`	test(scripts): reproduce unknown swap-table false absence	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `5a3eb17`
`eabf7f97`	fix(scripts): refuse unknown swap-table state	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh, scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `eabf7f9`
`8228c123`	test(scripts): reproduce kernel swap-path aliases	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `8228c12`
`5749b5a3`	fix(scripts): recognize kernel swap-path aliases	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh, scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `5749b5a`
`ad166647`	docs(reliability): record WSL2 swap alias qualification	Release consolidation and governance	details Files: docs/reliability/GAP-REGISTER.md, validation.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `ad16664`
`86630a8c`	test(scripts): reproduce non-idempotent legacy stop	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `86630a8`
`61ed4c2c`	fix(scripts): make clean legacy stop idempotent	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh, scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `61ed4c2`
`7495718d`	test(scripts): reproduce symlinked daemon ownership	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `7495718`
`156d8d2a`	fix(scripts): reject symlinked legacy PID records	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `156d8d2`
`99582e1b`	test(scripts): reproduce symlinked ZRAM ownership	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `99582e1`
`17e245ff`	fix(scripts): reject symlinked ZRAM records	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `17e245f`
`f8ef2da5`	test(scripts): reproduce false-success NBD detach	Release consolidation and governance	details Files: scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `f8ef2da`
`f9259a71`	fix(scripts): verify NBD detach in kernel state	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh, scripts/safety/test-legacy-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `f9259a7`
`225edc06`	docs(scripts): align NBD reserve comment with code	Release consolidation and governance	details Files: packaging/scripts/ramshared-vram-service.sh Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `225edc0`
`a97fc7ee`	docs(reliability): record replayable legacy teardown evidence	Release consolidation and governance	details Files: docs/reliability/GAP-REGISTER.md, validation.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `a97fc7e`
`624772e4`	fix(cli): block check activation when managed swap is active	Release consolidation and governance	details Files: crates/ramshared-cli/src/main.rs Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `624772e`
`2b829036`	feat(cli): autonomous origin vhdx attach and systemd scope envelopment	Release consolidation and governance	details Files: Cargo.lock, crates/ramshared-cli/src/cascade/cascade_io.rs, crates/ramshared-cli/src/main.rs (+14) Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `2b82903`
`0ccf1acd`	docs(trovaldo): log VMBus v2 qualification and WSL2 backport progress	Release consolidation and governance	details Files: trovaldo.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `0ccf1ac`
`2e7121fd`	docs: align WSL2 upstream proposal ISSUE-03 with v2 chunked CoCo allocation	Release consolidation and governance	details Files: docs/upstream/wsl2/ISSUE-03-VMBUS-ORDER7-FALLBACK.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `2e7121f`
`be9d0597`	bench(cascade): record Build #5 100% VRAM qualification metrics	Release consolidation and governance	details Files: docs/benchmarks/history/benchmark-2026-09-23_14-29-11.json, docs/benchmarks/history/latest.json Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `be9d059`
`96f516cf`	bench(cascade): qualify 100% 3-tier saturation on kernel Build #5	Release consolidation and governance	details Files: docs/benchmarks/history/benchmark-2026-09-23_14-39-15.json, docs/benchmarks/history/latest.json Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `96f516c`
`e71e0846`	fix(docs): resolve gitignored artifact link and align slice coverage	Release consolidation and governance	details Files: crates/ramshared-agent/src/psi.rs, crates/ramshared-block/src/inflight.rs, docs/upstream/wsl2/ISSUE-03-VMBUS-ORDER7-FALLBACK.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `e71e084`
`ea7f9449`	docs(evidence): register EVD-0046 100% 3-tier cascade qualification	Release consolidation and governance	details Files: docs/reliability/GAP-REGISTER.md, trovaldo.md, validation.md Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `ea7f944`
`fccbb5b9`	fix(cascade): require physical cache telemetry and harden teardown	Release consolidation and governance	details Files: crates/ramshared-cli/src/cascade/cascade_io.rs, crates/ramshared-cli/src/cascade/lifecycle.rs, crates/ramshared-cli/src/cascade/mod.rs (+15) Validation: ./scripts/docs-check.sh and CI test suites Risk/rollback: Revert commit via git revert `fccbb5b`

Issue

Closes #2084

Owner

@emersonbusson

Labels

type:feat, area:core, area:mm

Validation

Build and unit test gates (cargo test -p ramshared-cli — 318 passed, 0 failed)
Integration test gates (cargo test -p ramshared-cli --test cli_dispatch — 10 passed, 0 failed)
Rust slice coverage gate (node tools/ci/check-rust-slice-coverage.mjs >= 80% on touched files)
Documentation & governance checks (./scripts/docs-check.sh — PASS)
Host lifecycle recovery check (lifecycle-recovery-status.sh — CLEAN)
Tier 3 (Host SSD) qualification metrics and PASS_ZERO_PANIC included

Rollback trigger

VMBus ring buffer stall > 500ms, OOM kills during memory reclaim, or kernel panic on boot.

Reject shortened physical chunks before provider I/O and retain NBD handshake refusal regressions. Clarify that the inflight range model is not a runtime scheduler. Validation: cargo test -p ramshared-block (95 passed); fmt and clippy passed; sparse_vram.rs slice coverage 93.1% in prior local gate. Rollback trigger: any regression in cross-chunk I/O, NBD negotiation, or physical allocation refusal.

Refuse nonfinite and negative avg10/avg60 samples and keep parser diagnostics in English. The new named test was observed RED before the parser fix and GREEN after it. Validation: cargo test -p ramshared-agent (56 library, 16 main, 7 CLI passed); focused clippy passed.

Mock CUDA callbacks execute synchronously in the calling test thread. The prior global counter let parallel tests reset each other's observations; use thread-local Cell state instead. Validation: cargo test -p ramshared-cuda (16 unit passed, three hardware tests ignored, two doctests passed); focused clippy passed.

Scan each backslash run so single and triple escapes are refused while doubled escapes remain valid. Self-tests cover punctuation, spaces, trailing slashes, and safe paths. Validation: bash scripts/safety/wslconfig-ctl.sh selftest passed without host mutation. Rollback trigger: a valid escaped Windows path is refused or an unsafe path is accepted.

Consume prebuilt release binaries, require rpmbuild, and verify an RPM was produced before reporting success. Add isolated regression fixtures for missing binaries, missing rpmbuild, and a false-success builder. Validation: node --test tools/ci/build-rpm-package.test.mjs; docs-check passed. Rollback trigger: valid RPM builds cannot package the qualified prebuilt binaries.

Remove the agent-orchestration rule and checker, keep authorization and safety rules intact, and make live-document scans ignore deleted tracked files. The docs gate now includes RPM packaging regressions. Validation: ./scripts/docs-check.sh passed after removal.

Enforce release-version parity and correct standard WSL2 NBD, conditional ublk/io_uring, evidence IDs, reserve policies, benchmarks, and public wording across release-facing documents. Keep translation status explicit. Validation: release-automation fixtures and ./scripts/docs-check.sh passed. No hardware benchmark or public package was produced.

Correct PRD and SPEC assumptions, replace the unsupported Step 2.5 go verdict with a current no-go, and record Step 3 as partial. Preserve the working uncompressed Driver API path and separate sm_75 SIMT research from sm_80+ Tile qualification. Validation: CUDA unit tests, focused clippy, fmt, and docs-check passed. GPU compute, coverage for new backend files, live E2E, and BINARY_MATCH remain open. Rollback trigger: any architecture claim that incorrectly presents proposed GPU compute or cancellation as installed behavior.

Inventory all 194 open PRs by area and record source-level decisions, selected tested deltas, and unresolved qualification gates. Regenerate the documentation inventory after removing the routing rule and adding validation records. This is local triage, not PR merge approval or full product qualification. Validation: ./scripts/docs-check.sh passed.

Align the PR audit and CUDA validation record with the current GuardWSL contract: development commands run directly. Retain product-specific host safety and binary-match gates.

Remove stale build-admission wording from the RPM packaging script; its fail-closed prebuilt-binary contract is unchanged.

Keep the legacy service from disconnecting NBD or stopping its daemon if swapoff fails or the swap entry persists. The isolated regression was RED before this guard and GREEN after it.\n\nRollback trigger: a controlled lab stop reports an NBD teardown attempt while /dev/nbd0 remains listed in /proc/swaps.

Refuse to drain or disconnect active NBD swap when the recorded daemon PID is absent, dead, or does not resolve to the expected executable. The isolated foreign-PID test was RED before this guard and GREEN after it. Rollback trigger: a controlled lab stop attempts swapoff or NBD disconnect when its recorded daemon executable differs from the expected binary.

A failed or missing nbd-client now retains the daemon and runtime state. Revalidate the daemon executable before signaling, use TERM with a bounded exit wait, and never force-kill from this legacy path. The detach and signal regressions were RED before this fix and GREEN after it. Rollback trigger: a controlled lab run signals a daemon when NBD detach failed, or sends SIGKILL from the legacy service.

Reject an already-active NBD tier before touching cgroups, ZRAM, daemon records, or capacity markers. The isolated adoption fixture was RED before this guard and GREEN after it. Rollback trigger: a controlled lab start rewrites daemon or swap records while /dev/nbd0 is already listed in /proc/swaps.

Keep the installed-host handoff and cutile Tile execution gates partial. Record five isolated script regressions, the stale PID and binary mismatch observed read-only, and the EVD-0040 scope clarification without claiming a live migration.

Rollback trigger: activation fails on a supported NBD host despite confirmed swapon and /proc/swaps state.

Enforce physical GPU cache telemetry before running cascade stress or Tier 3 qualifications, preventing synthetic saturation claims when the WSL2 daemon origin uses DisabledCache. Extend swapoff timeout from 5s to 120s with daemon identity verification to guarantee clean, safe unmounting. Reopen Build #5 qualification gates in GAP-REGISTER.md and record EVD-0050 in validation.md and trovaldo.md. Rollback trigger: Revert this commit if cascade stress legitimately needs to run without active physical GPU cache telemetry or if 120s swapoff timeout delays normal teardown paths.

emersonbusson added 30 commits September 21, 2026 08:54

docs(governance): remove obsolete build-permit claims

7693b05

Align the PR audit and CUDA validation record with the current GuardWSL contract: development commands run directly. Retain product-specific host safety and binary-match gates.

docs(package): clarify direct release-build responsibility

53cec83

Remove stale build-admission wording from the RPM packaging script; its fail-closed prebuilt-binary contract is unchanged.

docs(reliability): retire obsolete build admission wording

ff0a6dd

test(core): reproduce duplicate PSI field acceptance

b891ac2

fix(core): reject duplicate PSI pressure fields

c8574a7

docs(cuda): record current cutile PR adoption blockers

69a7969

docs(cuda): gate cutile PRs on host validation

bfdd67e

docs(cuda): reflect current cutile support wording

b20f21e

docs(cuda): detail cutile PR blockers and test gaps

58fb470

test(scripts): reproduce unsafe legacy swapoff failure

7d1d556

test(scripts): reproduce foreign PID teardown

a7cace0

test(scripts): reproduce ignored detach and forced kill

aad7263

test(scripts): reproduce unsafe NBD tier adoption

d750164

test(scripts): reproduce false NBD capacity activation

e7e6637

fix(scripts): verify NBD swap before capacity claim

70c4657

Rollback trigger: activation fails on a supported NBD host despite confirmed swapon and /proc/swaps state.

test(scripts): reproduce legacy daemon startup collision

c2c8aae

emersonbusson added 2 commits September 23, 2026 12:11

docs(evidence): register EVD-0046 100% 3-tier cascade qualification

ea7f944

emersonbusson changed the title ~~feat: consolidate Build #5 kernel qualification, CoCo allocation, and legacy service hardening~~ feat: consolidate Build #5 kernel integration, CoCo allocation, and legacy service hardening Sep 23, 2026

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feat: consolidate Build #5 kernel integration, CoCo allocation, and legacy service hardening - #2085

feat: consolidate Build #5 kernel integration, CoCo allocation, and legacy service hardening#2085
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feat/ramshared-20260921-consolidation

emersonbusson commented Sep 23, 2026 •

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Summary

Key Changes

Hardware Benchmark Comparison

1. Workload & Capacity

2. Speed & Transfer Latency

3. Pressure & Stalls

4. Integrity & Stability

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Validation

Rollback trigger

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emersonbusson commented Sep 23, 2026 •

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