Parameterizes the throttle-sweep FPS battery (fpsBattery helper) and adds a
jetson-agx-thor run: asyncify raf 2.1-5.3 / distinct 0.2-0.8 vs JSPI raf
1.9-5.0 / distinct 0.1-0.7 — indistinguishable. Suspension overhead is a
per-event-loop-turn cost; at hundreds of ms of GAL work per frame it stops
discriminating. vme-wren (~27 MB) remains the discriminating size class.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016X9eh1s5sTx1o9Em9KBuwR
The runtime is JSPI-only; this removes everything that still pretended
otherwise. Three exhaustive sweeps (C++/JS+build+CI/tests+docs) drove
the inventory; every deletion verified by grep closure + full gates.
Broken-right-now fixes:
- deploy-staging.yml passed the retired opt_level input — the workflow
could not even start. Removed.
- env.sh carried dead exports with a live -sASYNCIFY=1 inside
(WASM_LDFLAGS/PTHREAD_LDFLAGS, zero consumers). Removed; the
WASM_LEGACY_EXCEPTIONS rationale rewritten to the real reason.
- docker/build.sh exported PCBJAM_ASYNC_BACKEND (read nowhere). Gone.
Dead weight removed:
- binaryen submodule (nothing builds or invokes it), wasm-opt-bench
workflow + scripts/bench/, get-wasm-opt.sh, diagnostics.js (242 lines
of Asyncify-API-only code), the KICAD_PIPELINE background-postprocess
scaffolding (existed to parallelize the deleted wasm-opt phase; the
postprocess is a seconds-long node script and now runs inline),
build-monitor's dead asyncify rows, sched-context orphan build
output, dead .gitignore entries, the .jspi-assets spike dir (the two
wf-result research JSONs moved to docs/features/async/migration-evidence/).
- bindings: fiber_park.h + its 12 embind registrations (broken-if-
called under JSPI), the kicadOpenFileStart/OPEN_JOB starter route,
main_stack_runner.h + 5 includes, the always-null context-sleep weak
hook in nanosleep_yield.c.
- shim: the backend field (installed-flag idempotency instead),
noteContextWait (dead both sides), the __wxAsyncifyDump alias (+ the
WasmTool fallback and string-dump normalize branch).
- web: the emscripten-6-ignored mainScriptUrlOrBlob option in boot.ts
(gerber-demo keeps it: it loads the deployed CDN release, which
predates emscripten 6 — noted inline).
Conditionals: all 'backend === jspi' checks reduced to scheduler-
presence checks; races_quiescent re-keyed from Asyncify.state (vacuous)
to real backlog quiescence (resumeReady/mutatorQueue — NOT _windowLive,
which is the probing activation's own window by definition).
Renames (identifiers only, no file renames): ASYNC_LINK_FLAGS→
JSPI_LINK_FLAGS and Makefile ASYNC_LDFLAGS→JSPI_LDFLAGS,
kicadCollabFiberBusy→kicadCollabBusy (embind + web + tests),
collab_common.h fiber*→apply*/coroutine naming, asyncifySignatures→
wasmTrapSignatures (lists byte-identical).
Tests: the two remaining vacuous [wx-asyncify]/fiber-resume-refused
asserts re-keyed to live JSPI beacons; eeschema-load's failure message
no longer sends the developer to a deleted script; wait-beacons' dead
families/parser deleted; lane-0 legacy-glue guards removed (lane 0 is
unconstructible); the embind test.fail re-gated with the JSPI reason
(plain embind invokers cannot suspend — verified still failing);
lint-determinism now scans tests/jspi (166 files clean);
eeschema-collab local-move gated to chromium (~50% flaky on FF even
solo; pcbnew twin covers both engines).
Docs: DEBUG.md rewritten as the JSPI debugging guide; build.md
describes the single-phase build; docs/features/async/README.md
banner-marked historical and repointed at the NEW
23-jspi-runtime.md (current architecture: export census, turnstile,
libcontext ownership + refusal contract, embind call shapes, the
em-pthread service-wrapper trick, exception policy, known gaps).
Gates on the cleaned tree: test:e2e 725 passed / 0 failed (after the
quiescence-probe fix; the 3 other reds were verified contention flakes
solo-green or the documented FF gate), web 76/0, jspi 18/18 both
engines, vitest 295/295 + 17/17, all lints green, live-app census
clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016X9eh1s5sTx1o9Em9KBuwR
Live-app fix (Place Footprints / routing dead in Chrome): submodule
bumps carry the coroutine ownership fix (kicad 012d95ecb4) and the
handler-exception survival fix (wxwidgets 1b5f0e31f4).
Emscripten-6 fallout:
- occ/ngspice worker wrappers: mainScriptUrlOrBlob was removed
upstream; pthread children re-run the wrapper blob, so an em-pthread
realm now importScripts the glue and gets out of the way (before:
recursive service boots, pool never fills, silent 180s boot hangs —
every occ spec and ngspice bg_run).
- Makefile.wasm: -sASYNCIFY frankenlinks on the no-wx coroutine repro
targets ported to -sJSPI (the JSPI-only libcontext crashed at first
yield under them); mainloop/gl repro pages drive their tick through a
promising export (emscripten_set_main_loop callbacks cannot suspend);
retired inject-dyncall-shims lines removed (targets were unbuildable
since Phase 8); $stringToNewUTF8 force-included (the EM_ASM value
bridge aborted the runtime on the first decoded exception).
- fiber-park levers: neither embind shape can drive suspending levers
(plain throws on strict-JSPI Firefox; emscripten::async() re-executes
its invoker on settle) — kept sync for manual Chromium probing, spec
coverage moved to the jspi-coroutine harness (18 cases).
Suite work:
- Playwright 1.61.1 -> 1.62.1 (Firefox 153: JSPI on by default).
- fiber-resume-park.spec retired -> coroutine-lifecycle.spec: census
gate over boot / board load / chooser open / cancel (deterministically
red on the pre-fix build).
- Blind asyncify-era pins re-keyed: quasimodal-strand + wait-beacons
beacon regexes, footprint-chooser-close liveness -> wx parking-timer
heartbeat (scheduler counters idle flat on Firefox).
- occ/ngspice test providers: 60s boot timeout + worker error
surfacing (a worker death used to be a silent 180s timeout).
- Harness pages: stale 9.99 config dir -> 10.0 (library_manager wxCHECK
noise, chooser had no libraries).
- gal-webgl harness: missing artifacts rebuilt (boost/glm extracted to
the host sysroot), PgmOrNull stub added for the rebased GAL.
- jspi-scheduler: clean-shutdown console line restored (app-quit
contract), quarantine never yanks SP from a live window.
Gates: test:e2e 699 passed / 0 failed (wx-chromium, kicad-firefox,
kicad-chromium, jspi-firefox, coroutine-firefox); web ff/cr/mobile 71
passed; lint:ci-coverage 166, lint:determinism 163, screenshots
manifest 492 current, corpus 7/7, tools:contract green. Offline
screenshot baselines show expected mass drift from the engine bump —
re-baseline (screenshots:noise -> promote) is a follow-up.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016X9eh1s5sTx1o9Em9KBuwR
Phase 8 in the parent repo. Deleted: asyncify-scheduler.js, apply-asyncify.sh,
apply-finalize.sh, inject-dyncall-shims.sh, asyncify-imports/removelist.txt,
the wasm-opt/finalize stub pair, scripts/binaryen-hoist-pass/ (the fork stays
a dormant submodule; removal is a follow-up), bench/wasm-opt-bench.sh (README
marked historical), wasm/shims/context_sleep.cpp, and the sched-context
harness app + Makefile targets.
PCBJAM_ASYNC_BACKEND is gone: build-wx-wasm.sh hardcodes the jspi stamp
(still force-cleans pre-migration trees), build-kicad-target.sh gives editors
the JSPI link surface and the CLIs nothing (they pin ASYNCIFY=0), the stub
dance is replaced by an unconditional .real-restore, build-wasm-test.sh lost
its whole post-link loop, docker/build.sh's postprocess is the ENV shim only,
and Makefile.wasm links every app JSPI with the scheduler shim as a tracked
prerequisite. pcbjam_async_policy.h keys on __EMSCRIPTEN__.
jspi-scheduler.js: wxWasmMainLoopPump dropped from the wrap census (the
export died with the D5 detach); inert [TRACE] instrumentation removed.
CI: wasm-build.yml rewritten for the single-cache pipeline (one output cache
keyed on compile inputs; post-processed bytes cached after the shim);
opt_level input removed from both callers. wasm-cache-hash.mjs inputs now
cover patch-env-shim.mjs + jspi-scheduler.js + jspi-exports.txt.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NDeBaKKhQztd8KiVtHuyXr
The D-on probe (wxWASM_STAR_DISPATCH=1 on top of D5) is measured and
recorded in doc 22 §10: the week's 'environmental cliff' was adopted-fiber-
stack alignment (trap 1, fixed in wx - retires the D5 entry's findings 2-3
with a mechanism); with it fixed D5+D reached 388 passed; the remaining
reds decompose into three named Phase B gaps (wake ordering on a running
context, finished-coroutine transfer livelock, invocation-aware root
routing), each with a deterministic repro suite. D parks again behind the
switch until Phase B owns coroutine lifetimes.
app-quit.spec.ts + a wx_test_quit hook in minimal_test drive a real
File->Quit-shaped exit through D5's detached teardown (loop exits on its
context, S6 latch 'clean', OnExit + wxUninitialize there) - green in the
D-on probe, closing the D5 teardown-gate open item.
Landing state (D off): coroutine + coroutine-pthread + app-quit green;
nested red at case 3 in the pre-existing doc-19 wake-window family
(cases 1-2, yesterday's blockers, now pass); races wakeup_during_transition
stays layout-sensitive. Both are the class the C+B+E flip removes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBjomQfKyRa3jBdeAKpmTw
star_transfer_call_is_synchronous stages exactly the TOOL_MANAGER shape -
Call() then read Running() on the next line - and pins that a parked caller
resumed by the scheduler is indistinguishable from a synchronous return.
star_transfer_chain pins a three-deep nested call (root -> A -> B and back) in
strict order, with a parked star context proved undisturbed throughout.
A rule learned the hard way here: a fiber entry must NEVER return (emscripten
ends the program if it does), so these bodies park forever once their script
is done, like libcontext's trampoline loops. Getting it wrong wedges the
battery with no output at all.
The fiberRunning assertion flips to the stronger Phase B invariant: once the
pump is quiescent NO fiber is on the CPU, the scheduler is.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EarUW9DS1c1sSW4ZNrkGQS
Bumps wxwidgets (fiber lane in sched_context.h) and kicad (libcontext's wasm
backend becomes an adapter over it), so there is now ONE party performing
every emscripten_fiber_swap and recording who is on the CPU. Behaviour is
preserved throughout - libcontext still decides, the registry observes and
beacons any disagreement - which is the de-risking step doc 20's D2 never had.
Harness + spec gain three fiber-lane scenarios: a fresh fiber enters at its
entry and a swap suspends the swapper (fiber_roundtrip), releasing a suspended
fiber is legal while a stale id refuses instead of use-after-free
(fiber_release_suspended), and symmetric swaps leave a parked star context
undisturbed (fiber_and_star_coexist). The spec asserts the lane's counters,
including the tripwire that must stay zero: fiberNonEnterableSwaps.
Doc 22 gains the Phase A work log: the gate (kicad suite 139/1, the 1 being the
pre-existing occ-probe glb matrix; wx 346/1/3; batteries 48/48; zero tripwires
anywhere), the four bugs the tripwires caught and the single rule behind three
of them, the grace ring and the 33-coroutine measurement Phase B needs from it,
and the process traps this run paid for.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EarUW9DS1c1sSW4ZNrkGQS
THE BUG IS FIXED. tests/kicad/quasimodal-strand.spec.ts flips from a
test.fail() pin to a plain green regression test: 3/3 runs
closed=true dialogs=0 refused-resumes=0 (was closed=false dialogs=1
refused-resumes=1 on every run).
Mechanism: a quasi-modal's nested event loop parked on the TOOL
COROUTINE's stack, which suspends the fiber's body where the fiber layer
cannot see it — so the stale-fiber guard quarantined the fiber and then
refused its own resume, the dispatch guard was never released, and every
click after that was deferred forever. Bouncing the nested loop onto the
main stack leaves the coroutine suspended the legitimate way (a recorded
fiber swap), so nothing is quarantined and nothing is refused.
Layering, so this is not a pile of WASM ifdefs in KiCad:
- wx (3d37db3bf1) owns the POLICY and the hook; it must not know what a
coroutine is.
- wasm/bindings/main_stack_runner.h is the only place that may know both
sides: it finds the frame's TOOL_MANAGER and bounces via RunMainStack.
Header-only and self-installing, so no build-script change; included by
every editor's binding TU.
- KiCad gets ONE ifdef-free method (2c777efede), needed only because
TOOL_STATE is opaque outside TOOL_MANAGER. libcontext and dialog_shim
are untouched — an earlier draft edited both and was reverted.
This also reframes the remaining plan: the doc-19 class is closed WITHOUT
migrating tool coroutines onto scheduler contexts. Note it does not make
the wait a context yield — waits still park in place, just never on a
coroutine stack.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TEHGiiXMShNXbBr7gSJ7iz
Two scenarios, deliberately separate because they answer different
questions that D3 depends on:
- fiber_nests_in_context: can a libcontext-style fiber run nested inside
a scheduler context at all? YES. Worth pinning explicitly — an earlier
version of this scenario trapped `unreachable` and briefly looked like
proof that nesting was impossible, which would have been a serious
wrong turn for the plan. The real cause was the test's own bug: the
host-side emscripten_fiber_t was zero-initialised, so the swap unwound
into a null asyncify buffer. Nesting works; the scenario now proves it.
- foreign_stack_refused: a yield from that nested fiber is REFUSED, and
the host context and scheduler both survive it.
The spec asserts foreignStackRefusals == 1, so the refusal path cannot
silently stop being exercised.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TEHGiiXMShNXbBr7gSJ7iz
Doc 20 §6 D1, second slice: the dedicated test app D1 calls for, plus
the doc 20 §7 risk-1 gate.
tests/apps/standalone/sched-context/ drives the primitives with no wx
linked (a failure can only be the contexts layer) and assertions ON —
unlike the races harness, an emscripten "cannot start an async
operation" state here IS the bug, not a tolerated state. Nine
scenarios, each pinning one invariant; the load-bearing ones:
- parked_does_not_block: a parked context does not stop others running.
This is doc 19's freeze made unrepresentable — there a parked activity
held a global interlock and the UI died; here "parked" simply means
"not runnable", and three workers run past it before it resumes.
- one_transition_in_flight: a context calling drain() gets a no-op, with
a second ready context queued so a buggy nested drain would actually
run something and be caught.
- async_wake: a real macrotask hop (setTimeout → mark_ready → drain),
the shape every production bridge has.
- deep_park_sizing: parks 64 live frames deep to measure what a park
actually costs.
The memory gate asserts the ceiling (peak live contexts, peak bytes),
that nothing leaked (live=0, bytes=0, created==finished), that nothing
was left mid-transition, and that refusals occurred (zero would mean the
illegal-operation scenarios stopped provoking).
Measured here: ~34 B/frame, 2200 B for a 64-frame park, 1 MB peak for 4
concurrent contexts. Recorded with the caveat that the harness's frames
carry three locals each, so this is a FLOOR — real bridges save far more
per frame (libcontext runs 512 K after a 64 K buffer silently
overflowed). The apparatus and its units are validated; the sizing
DECISION needs deep-park numbers from real bridges at D3/D4.
playwright.config: asyncify-firefox now matches every spec in ./asyncify
instead of only asyncify-races* — a new harness there is covered by
construction rather than by remembering to widen the pattern.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TEHGiiXMShNXbBr7gSJ7iz
Doc 20 D0 second deliverable (doc 21 §4). tests/kicad/quasimodal-strand.spec.ts
reproduces the Symbol Properties hang on demand, in two parts:
- "staging" (GREEN): double-click the fixture symbol → Symbol Properties
opens → arm the parking timer (wasm/bindings/timer_park.h) WHILE the
dialog is up. Because the opener's fiber park is open-ended, a timer
firing now necessarily parks on top of it — the overlap is structural,
not a won race. Asserts the dialog opened, the timer fired, its OK
button is hittable, and the shim beaconed concurrent contexts. Keeps
the red pin from rotting into vacuity, and fails loudly on its own.
- "doc-19 red" (test.fail()): clicks OK and asserts the desired end state
— dialog closes, zero fiber-resume-refused beacons, wait books balanced
(no unresolved nested/modal wait). Goes green at D3, when Playwright
will report "expected to fail but passed" and the marker comes off.
Verified 6/6 consecutive full-file runs, identical outcome each time:
closed=false dialogs=1 refused-resumes=1 — the doc-19 mechanism exactly
(quarantined fiber's legitimate resume refused, dialog never closes).
Deliberately NOT asserted in staging: the timer park COMPLETING (whether
a park survives the aliasing is the disease under test) and sawParked (a
100ms sampler can miss a short park) — both are reported, not gated.
Retires tests/kicad/dialog-deadlock-probe.spec.ts: the 8/4 throwaway probe
that established the mechanism. This spec supersedes it and, unlike it, is
deterministic (the probe's 3 blind waitForTimeouts were the only
determinism-lint violations in the tree; the guard is now clean).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TEHGiiXMShNXbBr7gSJ7iz
Gate results (single battery, scheduler-only): wx app battery +
asyncify + coroutine 363 passed / 3 skipped / 0 failed; full kicad
suite 138 passed / 30 skipped / 1 failed — the one failure is the
pre-existing local occ-probe glb case (predates D-1, unrelated).
Post-gate scrubs: vestigial 'startModal' removed from ASYNCIFY_IMPORTS
(tests/apps/Makefile.wasm) and env.startModal from
scripts/common/asyncify-imports.txt (the import no longer exists in any
wasm; both lists are boundary supersets so behavior is identical).
Stale comment pointers to the deleted legacy modal machinery updated.
Doc 20: D-1 work log added, status flipped to IN PROGRESS.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TEHGiiXMShNXbBr7gSJ7iz
Doc 20 D-1, second slice: the injector now injects asyncify-scheduler.js
unconditionally — the WX_SCHEDULER=0 legacy opt-out, the
SHIM_DISABLE_HANDLESLEEP ablation skip, and the
SHIM_DISABLE_TRAMPOLINE_HEAL ablation skip are gone, and
scripts/common/shims/handlesleep.js is deleted (the scheduler subsumed
its capture/restore, fiber guard, and trampoline-heal duties in S2).
Comment-only scrubs point the remaining references at the scheduler
shim. .ci-cache-epoch bumped (shim/injector behavior changed).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TEHGiiXMShNXbBr7gSJ7iz
Doc 20 D-1 (legacy runtime deletion), first slice: races_test_noheal /
races_test_nosleepfix pinned behavior of the legacy handlesleep shim,
which is being deleted — the pins now assert properties of a runtime
that no longer exists. Drops the two Makefile.wasm link+inject variants
(SHIM_DISABLE_TRAMPOLINE_HEAL / SHIM_DISABLE_HANDLESLEEP), the
shim-redundancy pin specs in asyncify-races.spec.ts, and resolves the
tests/README.md open task. The green battery still runs every scenario
against the scheduler glue.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TEHGiiXMShNXbBr7gSJ7iz
Reproduced live on the dev platform: the tool fiber running the
quasi-modal parks mid-body, is quarantined by the stale-fiber guard,
and its resume is REFUSED — so it never releases the dispatch guard.
Interlock held forever => clicks deferred and never drained, timer
delivery frozen; the titlebar X works because it is ungated.
Includes the captured frozen state, what is ruled out (clicks do reach
wx; no I/O in flight), and ranked fix directions. Regression vs
pre-existing still undetermined — needs a real WX_SCHEDULER=0 build.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfxKn5utcntBSnxz4ZnYKs
asyncify-scheduler.js REPLACES handlesleep.js on WX_SCHEDULER=1 builds
(injector either-or): ports capture/restore, fiber consume-once/
quarantine guard, wake-window flags, recorder, trampoline heal — and
adds deferred wakes (a wake mid-transition queues and drains from a
clean macrotask) plus the N1 currData accessor (pure-JS writes need
scheduler authorization; strict mode throws; meta-tested). Gates:
races 9/9 with NO legacy shim (subsumption), coroutine 39/39,
wx-chromium 30/30, kicad trio 3/3 on the C-lane build.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfxKn5utcntBSnxz4ZnYKs
Shim embind lane wraps the doc-18 production mutators at the Module
boundary (busy-window calls queue + deliver post-settle; time-boxed
unkillable pump). N2 un-fixme'd and green; collab-load-fuzz carries the
variant contract (drop on legacy, deliver-in-order on scheduler, capped
hammer on the scheduler lane); timer-park's timerRetry silence tripwire
arms on shim+export and is green on the C-lane kicad build. Bump
wxwidgets for the wheel lane. CI both-EH matrix deliberately deferred.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfxKn5utcntBSnxz4ZnYKs
Doc 17 step S0 scaffolding: WX_SCHEDULER=1 injector path with an
observation-only asyncify-scheduler.js skeleton (legacy shim stays
authoritative until S2), guard-beacon extraction with occurrence
recovery for rate-limited beacons, and the fixme'd N2 ordering spec
(add-then-move probe; un-fixme at S1).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfxKn5utcntBSnxz4ZnYKs
move-vs-move diverged on CI right after value-vs-value was extracted: across
this week's runs, THREE different same-item conflict steps have each failed
to converge (settleConverged 90s, byte equality never reached). This is a
conflict-resolution class bug, not a per-step flake — same evidence profile
as before (no guard beacons, reproduces locally, not poll timing). Whole S4
test fixme'd alongside S4b; the sequenced-edit scenarios (S1–S3, S5–S8) have
never diverged and remain active. Tracking: memory s4-value-race-divergence.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
Two clients racing setValue genuinely diverge in ~5-8% of runs:
settleConverged times out at 90s with the trio never reaching byte equality.
Not timing (windows already widened, reproduces locally at single-worker) and
not the asyncify guards (zero beacons in failing runs) — a real CRDT/apply
race this harness exists to catch, gating unrelated releases in the meantime.
Extracted into its own test.fixme (S4b) with the full original body;
move-vs-delete and move-vs-move stay active in S4. Tracking notes: memory
s4-value-race-divergence — next steps are capturing both tabs' modelText diff
at timeout and bisecting the value-apply path.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ac/code/session_019SE4o46Lnq3hF574FFq8x4
drift-trio-scenarios S4/S5 flaked 4× across this week's CI runs (three wasm
instances + full-suite load on the runner) while passing 77/78 locally under
stress — and the one local miss carried zero guard beacons, i.e. the same
under-load convergence shortfall, not a code path. Same treatment as the
follow spec: condition-based polls keep their shape, windows grow to what a
starved box actually needs (inline S4/S5 polls 20s→60s, waitAllContain
30s→90s, settleConverged 30s→90s). Local convergence stays ~1s.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
v0.1.22's WasmErrorBoundary was still not enough: a commit-phase throw in
WasmTool's OWN effects unmounts the root, and no boundary below it helps.
fatal-screen.ts is the floor: plain-DOM blue screen with its own mirrored
log ring (append feeds recordFatalLog), installed at module import in
main.tsx — before and independent of React. It cooperates with the React
overlay: hidden while [data-testid="fatal-overlay"] exists, takes over via a
1Hz ensure-loop the moment it disappears. Fatal promotions also append the
asyncify flight-recorder dump so whichever screen survives carries the
targeting data.
fatal-overlay.spec.ts now also rips out the React root after the fatal and
asserts the DOM floor takes over with the mirrored [fatal] log.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
4 flakes in 6 CI runs on 2026-08-01, all with clean traces: no guard beacons,
A demonstrably landed (the 208cb67 sequencing gate passed), B just never got
the one-shot rect applied within 30s while two wasm instances starved the CI
box. Awareness re-broadcasts state periodically, so a 90s condition-poll
converges on re-delivery; local runs stay fast (converge in <2s).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
kicadTestFiberParkStartSecond/PokeSecond: a second coroutine started while
the first body is asyncify-parked reproduces the misattributed jump that
launders the parked fiber past the C++ guard (the v0.1.21 prod bypass).
Spec scenario 2 stages it and asserts the JS stale-rewind guard quarantines
the laundered resume (exactly one fiber-resume-refused beacon), the parked
body completes undisturbed, and both coroutines finish cleanly.
Doc: async/16 rounds 2 + WSOD section.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
All three prod crash cascades (v0.1.19–21) ended white for the same reason:
the final trap lands inside a child's EFFECT (an embind call reached through
a react-query subscription), React unmounts the entire root, and the fatal
overlay + console panel die with the tree they were built to survive.
- WasmErrorBoundary: crash-capable children live inside it; the fatal screen
and the console panel live OUTSIDE and keep rendering. WasmTool state
(logs included) survives a descendant render/effect throw.
- The fatal screen is now an actual blue screen (:( + solid blue), and every
promotion path (window error, unhandled rejection, worker error, boundary)
auto-opens the console — the log is the only account of what was loading.
- tests/web/fatal-overlay.spec.ts pins the contract: a terminal uncaught
error after boot ⇒ visible fatal overlay + open console with the [fatal]
record. Green locally (23.9s).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
"B never tracked the second viewport move" ate three v0.1.21 release
attempts (2026-08-01) while the same build passed 10/10 locally, including
under 4-worker contention. The T2 block asserted B's convergence without
first confirming A's second fit LANDED — the T1 block has that sequencing
point, T2 didn't — so on a starved CI box any A-side fit delay was
misreported as a B-side tracking failure, and B's 30s window burned while A
was still moving. Mirror the T1 pattern: poll A onto its target, then start
B's clock.
Verified 4/4 green locally (web-chromium, 2 workers). Reminder that cost 20
minutes tonight: web/standalone/.env poisons local web e2e (untitled/title
mismatches) — stash it before local runs (standalone-env-e2e-poison).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
Companion to kicad f0ce20ef64 (libcontext swap_suspended guard), which this
pins. The v0.1.20 diagnostics decoded the crash that survived v0.1.13–19:
TOOL_MANAGER Resume()s a coroutine whose body is asyncify-parked inside
handleSleep, the swap rewinds the stale fiber suspension, and the runtime is
poisoned. Full chain of evidence in docs/features/async/16-fiber-resume-guard.md
(+ round-3 addendum in 15-timer-park-repro.md).
- wasm/bindings/fiber_park.h + kicadTestFiberPark{Start,Prime,Poke,State}
exports (pcbnew + merged kicad_editor): stages Call→yield→legitimate
resume→sleep park→mid-park Resume, the exact prod state machine. The
first yield matters: it primes a real (then stale) suspension, matching
long-lived tool loops rather than a first-slice park.
- tests/kicad/fiber-resume-park.spec.ts: asserts the healthy contract on
polled state only (embind returns across fiber swaps are unwind
placeholders). RED on the unguarded build — fiber/sleep buffer
cross-restores, a jump-ghost beacon, the parked body zombified. GREEN with
the guard: mid-park poke refused ([collab-fcontext] jump-refused beacon),
park completes, post-yield resume works, no trap signatures.
- Regression sweep green: timer-park-repro, collab-load-fuzz, load-pcb,
pcbnew-collab, collab-undo, eeschema-collab (19 passed).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
kicadTestArmTimerPark(delayMs, parkMs): a one-shot wxTimer whose Notify()
emscripten_sleep()s, entering through the exact GAL-refresh-timer path
(emscripten_async_call → TimerCallbackFunc::Run → dispatch guard → Notify) —
the fresh-entry-that-parks the prod board-load trap family needs. Pollable
kicadTestTimerParkState(); inert unless armed. Registered beside
kicadTestSetOpenPark in pcbnew + the merged kicad_editor image.
tests/kicad/timer-park-repro.spec.ts drives four escalating cycles (park
only, 2× + fiber hammering, + 256MB heap growth mid-park) and asserts the
runtime survives every rewind AND that the [wx-asyncify] diagnostics observed
the window — engagement is asserted, so a run where the lever never created
the overlap cannot pass vacuously.
Result so far (docs/features/async/15-timer-park-repro.md): GREEN through
both rounds — genuine double-parks, live currData cross-restores, fiber
swaps, and mid-park heap growth are all handled by the shim + runtime. The
prod trap needs an ingredient this window still lacks (ranked in the doc);
the spec stays as the regression gate for whatever the eventual fix is.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SE4o46Lnq3hF574FFq8x4
The onItems handler let unwrapWireItem's throw unwind through embind into the
C++ emitter — a bare pageerror, the whole batch lost, and flushDiff already
rebaselined so the dropped items could never be re-sent. Field-seen case:
Update PCB from Schematic emitted 67 changed entries, one an item-less board
envelope (pcbnew writes nothing for a standalone footprint field); all 67 were
dropped and two new footprints existed only on the syncing tab.
The conversion now skips un-resolvable entries per-entry (shared items-wire
fix), every conversion site warns via warnSkip, and the handler body is
wrapped so nothing escapes into the C++ caller again. The tests/web spec
drives the real serializer's empty envelope through onItems and holds that a
good entry batched with it still reaches the peer (proven red before the fix).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019daWLdW5xrRhjUvCUWoSAe
- kicadOpenFile now holds wxWasmDispatchGuard (open_gate.h). It enters through
embind, so the interlock read "nothing parked" for the whole load and wx timers
dispatched into the half-built board — the residual prod "index out of bounds"
that survived the settle gate.
- new wasm/bindings/gerbview_embind.cpp (the bundle had no embind surface at all):
kicadOpenFile / kicadOpenFiles / kicadOpenFileBusy. Clicking one gerber opens the
whole fabrication set in its folder, since a lone layer is not a useful view.
- cross-app presence rejoins in the boot fan-out (network-only; the wasm-bound half
still waits for the open to settle) — it had been pushed behind the board load.
- tests: gerber-set selection units + a gerbview multi-file open e2e.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0137pGo8W7asomGUTRMB7RzM
Self-asserting wx app (tests/apps/standalone/uipolish) with 8 checks:
clip-clear / clip-empty / clip-box (DC clip box reaches the canvas — the
collapsed wire-properties-panel bug), blit-origin (wxBufferedDC device
origin), mask-alpha (ConvertToImage carries wxMask — infobar close button),
scaled-dims (physical size for scaled bitmaps), checkbox-floor (selection-
filter density) and statbmp-best (bundle logical size — layer-panel icons).
The spec runs a default-DPR pass plus a deviceScaleFactor:2 pass that also
asserts the statbmp <img> ships the 32px asset at 16 CSS px.
Bumps wxwidgets for the CloneGDIRefData SOURCE_NONE fix the @2x pass
surfaced (empty statbmp data URL on hi-DPI).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Mh188aysvgeaTRYh6syztQ
The WRL→STEP migration notice auto-dismisses after 10 s
(pcb_edit_frame.cpp ShowMessageFor); when the timer fired between the
pre-hide GL-box baseline and the post-restore comparison, the canvas
shifted by the bar's height and the ±3 px restore-exactness check could
never pass (CI 30289317464, web-firefox — pure timing, the wx dark
form-control bump on that run was innocent). Gate the baseline on the
notice being HIDDEN — its DOM node outlives the dismiss, so absence
never happens.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y32etYBCKV6t1qDoLoGmgF
kicad bump: re-apply only the nav hunk of 3dcfea5e45 (the 7/20 backout
92f18ef4ed was aimed at the WebGL GAL recovery/flush but took the nav
with it, breaking web/tool-switch.spec.ts on both engines since).
eeschema-sim spec: the Run tool's ENABLE(!simRunning) is a wxUpdateUIEvent
condition the WASM port only re-evaluates on input events — after a run
finishes the toolbar can hold its stale "running" state past the 60s
poll (CI 29846684031: run finished, Run still disabled). Nudge the mouse
inside the poll so the condition re-evaluates.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01APzCH3oxjLrZk6Nxepvczz
Symbolized (HOIST_KEEP_NAMES=1): the trap is on the asyncify REWIND re-entering
the fiber — stack-local COROUTINE+body were destroyed when Call() returned
early on a park, so the rewind called through freed objects (latent UB in the
ORIGINAL fire-and-forget runOnFiber too). Heap-pinned FiberSlot + explicit
done flag + fiber-tail re-drain. Layer 2 (rewind interplay) still open —
fuzz stays fixme'd; pageerror stacks now captured in fuzz artifacts.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G5cAM9M6q34n5X4dbrfVvi
runOnFiber now runs bodies strictly one-at-a-time through a park-safe FIFO
(collab_common.h): the per-body fire-and-forget coroutine interleaved under
load — an asyncify park inside commit.Push let the event loop start the next
body, so a local commit and a remote apply ran interleaved on shared state
(s_applyingRemote is one global), silently losing applies on the actively-
editing receiver (fuzz finding #10a; B now fuzzes clean; 39-test suite green).
kicadCollabFiberBusy embind probe (merged + standalone registrations): a
bare-embind-stack scratch save during a parked fiber mis-dispatches (table
index OOB) — trio.ts modelText/drift and production drift-detect now defer
while fiber work is in flight (#10b hardening; the trap's root cause is still
open and needs a symbolized stack — fuzz stays fixme'd).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G5cAM9M6q34n5X4dbrfVvi
drift-trio-fuzz.spec.ts: mulberry32-seeded weighted concurrent actions on A+B
(C observes), K=40, marker-synced oracle sweep every 10 steps, per-tab console
capture, and a replayable failure artifact (seed + action log + drift/saves/
renders/consoles) dumped to logs/kicad/drift-trio-fuzz/. DRIFT_FUZZ_SEED
replays a sequence exactly.
First catch (0008 §10 #10, OPEN): the actively-editing receiver's C++ apply
silently drops ops under sustained bidirectional load — JS dispatched every
apply, the editor never applied some; pure observer and emitter stay clean;
one run hit a wasm 'memory access out of bounds' on the observer. Timing-
dependent, so the fuzz tests are test.fixme'd (an expected-fail would flake
CI) and run manually via DRIFT_FUZZ_SEED until the fix lands (phase E).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G5cAM9M6q34n5X4dbrfVvi
drift-trio-scenarios.spec.ts: disjoint ping-pong, same-item interleave (no
settle between bursts), conflict pairs (move-vs-delete / value-vs-value /
move-vs-move — winner is CRDT policy, asserted only as convergence + drift
silence), undo storm, 12-edit burst churn, late-joiner adopt, and Ctrl+S mid
peer burst; per-tool adapters, marker-waits before every sweep (finding #7).
S4 exposed finding #9: mutation hooks resolved item pointers at call time and
committed later on the fiber — a remote remove in between frees the pointer
(doApplyItems) and the commit resurrects the deleted item. Phase-B mutation
hooks now re-resolve by uuid ON the fiber; a vanished item makes the mutation
lose silently. applyDeltaToY's concurrent update/delete verified coherent
(full resurrect or full remove) — no shared change needed. trio.ts: TabSet
oracles + exported startV2 for duo/late-join composition.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G5cAM9M6q34n5X4dbrfVvi
17 kicadCollabTest* action primitives (eeschema: wire/junction/no-connect/
label/symbol/move/mirror/duplicate; pcbnew: track/via/text/zone/flip/
footprint-field/lock/move/duplicate), each a real SCH_/BOARD_COMMIT on the
fiber so the listener → flushDiff emit runs as for UI edits; tool-unique
names, merged-image safe. Fixes surfaced by the catalogs (0008 §10 #4–#8):
eeschema adds SetParent before staging (Push silently skips listener
notifications for unparented items), and pcbnew blobForItem now Formats
non-footprints with the FILE writer + wrapInBoardEnvelope — SaveSelection's
transfer copy cleared the locked flag, so (locked yes) never reached the doc.
drift-trio.spec.ts gains full A/B-alternating catalogs with per-step landed
gate + oracle sweep. Bumps kicad for the Duplicate child-uuid re-roll.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G5cAM9M6q34n5X4dbrfVvi
Comments showed the author's SLUG — which doubles as their personal scope
— instead of their name, because WasmTool passed presenceUser().id where
.name already existed.
- denormalize authorName/authorEmail onto each comment message + thread at
write time, so a comment still reads correctly when its author is
offline, renamed, or gone. `author` stays the SLUG: colorFor() and the
"is this mine?" ownership checks compare it. Legacy comments fall back.
- session-identity keeps the email it was already fetching and discarding.
Overlay menu: restyle + reorganise into labelled sections (People /
Document / Comments / View) over one shared row shape, so sections can't
drift apart again.
- comments: four bare icons -> labelled rows (Add comment / Show list with
count / Hide pins). The nested expand toggle is gone: the section IS the
group, so it was a collapsible inside a collapsible.
- presence: facepile of initials -> one row per person with an explicit
Follow/Stop. The separate "Following X" banner is deleted; that state now
lives on the person's own row, so there is nothing to keep in sync.
- SourceChip gains a `muted` tone for known-dark surfaces; its solid
variant is untouched for the light project pages that share it.
Fixes a regression the redesign introduced: the taller panel (z-50) covered
the comment popover (z-40), and since a popover can be opened FROM the
menu's thread list, the menu swallowed clicks on the popover it had just
spawned — delete was unreachable. Popover now z-[60].
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016p9kjdGBdcpwUSjJ3q5xg2
The Y.Doc is the source of truth for the FILE, but both live wires wrote
KiCad's CLIPBOARD dialect — a lossy, paste-oriented format. Every
difference was permanent, unfixable drift.
- pcbnew: serialize footprint blobs with CTL_FOR_BOARD, not CLIPBOARD_IO's
CTL_FOR_CLIPBOARD, which emitted (version)(generator)(generator_version)
inside every (footprint …). Keep (locked yes).
- eeschema: aForClipboard=false — clipboard mode collapsed every symbol's
(instances … (path "/sheet")) to (path "").
- Re-supply (version) at PARSE time only (withFootprintVersion): the token
is invalid file content but load-bearing on decode — without it the
parser starts at m_requiredVersion=0 and stamps (hide yes) on every
mandatory field.
- FOOTPRINT copy ctor: restore mandatory-field uuids (EDA_ITEM::operator=
keeps the target's const m_Uuid, so Clone() rerolled all four).
- drift: classify order-only diffs as `reordered` — y-sexpr v2 reorders
legitimately; excluded from counts, report-worthiness and dedupe hashes.
Migration 0017.
- fpedit from eeschema: AsyncLoad()+BlockUntilLoaded() in initLibraryTree —
FACE_PCB starts lazily there and never preloaded its libraries.
Guards: wire-vs-file round-trip tests (pcbnew + eeschema),
fpedit-from-eeschema (verified red without the fix), symedit-from-eeschema.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016p9kjdGBdcpwUSjJ3q5xg2
