feat: size-routing fix for phase-crossing allocations#8

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feat/size-routing

Commits on May 6, 2026

feat: size-routing fix for phase-crossing allocations

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chore: remove findings.tsv (audit trail lives in PR #8 body)

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style: cargo fmt on test files

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test(exp5): scenario 5 — realloc across phase boundary corrupts retained Vec

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test(exp5): scenario 3 — panic without end_phase leaves arena active

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test(exp5): scenario 2 — per-worker deque buffer growth across phase

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test(exp5): scenario 6 — concurrent begin_phase/end_phase across threads

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test(exp5): scenario 1 — crossbeam-epoch deferred garbage (empirical)

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test(exp5): scenario 4 — thread pool build during active phase

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test(exp5): bonus — Arc<T> refcount corrupted across phase boundary

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test(exp5): bonus — HashMap retained across phase corrupted

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test(exp5): bonus — Box<dyn Trait> data corrupted, vtable preserved

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feat: PhaseGuard RAII for panic-safe phase boundaries (fixes F17)

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docs: warn about F16-family retention hazards in begin_phase

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test: move F16-family contract-violation tests off feat/size-routing

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fix: sticky-System routing in realloc

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docs: rewrite module-level intro for the two-allocator model

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docs(README): usage section covers two-allocator model + env vars

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fix(test): cross_thread_begin_phase platform-aware assertion

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fix(test): cap recursion depth at 256 to fit macOS debug stack

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fix(test): serialize test_phase_guard tests via file-local mutex

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feat: size-routing fix for phase-crossing allocations#8

feat: size-routing fix for phase-crossing allocations#8
Barnadrot wants to merge 21 commits intomainfrom
feat/size-routing

Commits on May 6, 2026

feat: size-routing fix for phase-crossing allocations

chore: remove findings.tsv (audit trail lives in PR #8 body)

style: cargo fmt on test files

test(exp5): scenario 5 — realloc across phase boundary corrupts retained Vec

test(exp5): scenario 3 — panic without end_phase leaves arena active

test(exp5): scenario 2 — per-worker deque buffer growth across phase

test(exp5): scenario 6 — concurrent begin_phase/end_phase across threads

test(exp5): scenario 1 — crossbeam-epoch deferred garbage (empirical)

test(exp5): scenario 4 — thread pool build during active phase

test(exp5): bonus — Arc<T> refcount corrupted across phase boundary

test(exp5): bonus — HashMap retained across phase corrupted

test(exp5): bonus — Box<dyn Trait> data corrupted, vtable preserved

feat: PhaseGuard RAII for panic-safe phase boundaries (fixes F17)

docs: warn about F16-family retention hazards in begin_phase

test: move F16-family contract-violation tests off feat/size-routing

fix: sticky-System routing in realloc

docs: rewrite module-level intro for the two-allocator model

docs(README): usage section covers two-allocator model + env vars

fix(test): cross_thread_begin_phase platform-aware assertion

fix(test): cap recursion depth at 256 to fit macOS debug stack

fix(test): serialize test_phase_guard tests via file-local mutex