shoney.arickathil
f6a1da7eb4
- spawn placement: round-robin across shards (same-shard when the engine is absent/single); the actor's mailbox and delivery belong to its HOME thread — a spawn to another shard travels as an ADOPT envelope, a send as a SEND envelope (mutex-guarded inbox + eventfd wake; the spec's lock-free rings stay a disclosed deviation until 9e measures the mutex) - workers: first envelope triggers lazy full-vm init UNDER the inbox mutex (TSan caught the memset racing a concurrent push, twice — the second was inbox_push reading wake_efd outside the lock; both fixed, gate x8 + battery clean); serve loop = adopt -> run to drained -> wait on the plane (the wake eventfd is watched by io_uring POLL_ADD oneshot / epoll level-triggered on BOTH backends) - ownership across heaps: every allocation stamps rt->shard_id into the header (the field reserved since iteration 2); a drop on the wrong shard routes home as a FREE envelope — the owner's arena stays single-threaded by construction; at teardown routed frees become no-ops (arenas die wholesale) which is what un-danced the freed-mutex ASan SEGV the first ordering had - WO-E222: an actor's state or message type that is (or transitively contains) an inferred-traced class refuses at the spawn/send — with round-robin every actor is potentially remote; corpus-pinned (compile-fail/traced-send, inference-aware: Box contains ?Node) - determinism narrowed per spec: oop-e2e pins WO_SHARDS=1 (exact outputs); the fibers gate grows multi-shard SET assertions + a TSan run (wovm-tsan target; setarch -R fallback for kernel 6.5+ ASLR) - NEXT_RUNNABLE honors engine shutdown for parked workers (deadlock hole closed); io_wait's adopt-wake (rc 1) no longer reads as fatal - battery: oop-e2e 93/0, fibers 10/0 x8 (+WO_IO=epoll), log-watcher 7/0, employee 8/0, web-app 21/0, deps 8/0, runtime tests 16/16 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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WO-E222
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