G8l: task-exit identity read-access guard genişletmesi

pub fn preflight_s256_whole_scheduler_read_coverage(
    caller_cpu: usize,
    request: Option<G8lS245WholeSchedulerExclusionAdmissionRequestView>,
) -> Result<
    G8lS256WholeSchedulerReadCoveragePreflightOutcome,
    G8lS256WholeSchedulerReadCoveragePreflightError,
> {
    match preflight_s255_whole_scheduler_read_coverage(caller_cpu, request)
        .map_err(G8lS256WholeSchedulerReadCoveragePreflightError::S255)?
    {
        G8lS255WholeSchedulerReadCoveragePreflightOutcome::Idle => {
            return Ok(G8lS256WholeSchedulerReadCoveragePreflightOutcome::Idle);
        }
        G8lS255WholeSchedulerReadCoveragePreflightOutcome::AwaitingCoverage {
            guarded_sites,
            unrouted_sites,
            ..
        } if guarded_sites == S255_WHOLE_SCHEDULER_GUARDED_SITES
            && unrouted_sites
                == S246_DIRECT_SCHEDULER_ACCESS_SITES - S255_WHOLE_SCHEDULER_GUARDED_SITES => {}
        G8lS255WholeSchedulerReadCoveragePreflightOutcome::AwaitingCoverage {
            guarded_sites,
            unrouted_sites,
            ..
        } => {
            return Err(
                G8lS256WholeSchedulerReadCoveragePreflightError::PriorCoverageDrift {
                    guarded_sites,
                    unrouted_sites,
                },
            );
        }
    }

    let outcome = preflight_s246_whole_scheduler_exclusion_provider(
        caller_cpu,
        request,
        G8lS246WholeSchedulerCoverageAudit::new(
            S246_SOURCE_AUDIT_UNITS,
            S246_DIRECT_SCHEDULER_ACCESS_SITES,
            S256_WHOLE_SCHEDULER_GUARDED_SITES,
        ),
    )
    .map_err(G8lS256WholeSchedulerReadCoveragePreflightError::S246)?;
    match outcome {
        G8lS246WholeSchedulerProviderPreflightOutcome::Idle => {
            Ok(G8lS256WholeSchedulerReadCoveragePreflightOutcome::Idle)
        }
        G8lS246WholeSchedulerProviderPreflightOutcome::AwaitingCoverage {
            request_id,
            guarded_sites,
            unrouted_sites,
        } => Ok(
            G8lS256WholeSchedulerReadCoveragePreflightOutcome::AwaitingCoverage {
                request_id,
                guarded_sites,
                unrouted_sites,
            },
        ),
        G8lS246WholeSchedulerProviderPreflightOutcome::CoverageCompleteAwaitingProvider {
            ..
        } => Err(G8lS256WholeSchedulerReadCoveragePreflightError::UnexpectedCoverageComplete),
    }
}

#[test]
fn s256_pending_request_reports_twenty_guarded_without_taking_it() {
    let state = pending_request();
    assert_eq!(
        preflight_s256_whole_scheduler_read_coverage(
            S245_TARGET_CPU1,
            Some(pending_request_view(&state)),
        ),
        Ok(
            G8lS256WholeSchedulerReadCoveragePreflightOutcome::AwaitingCoverage {
                request_id: 1,
                guarded_sites: 20,
                unrouted_sites: 91,
            }
        )
    );
    assert_eq!(state.pending_request_id(), Some(1));
}

  {
    id: "g8l-s256-task-exit-identity-read-access-guard-expansion-partial",
    date: "2026-08-25",
    sequence: 256,
    status: "passed",
    umbrella_status: "partial",
    title: "G8l: task-exit identity read-access guard genişletmesi",
    summary:
      "S256 11/11 PASS ile S255 production reader gate'ini fatal task sonlandırma ve normal task_exit yollarındaki iki read-only current-task-id snapshot'ına taşıdı. Her iki yol yalnız Option<u64> kopyası çıkarır; reader membership kopyadan hemen sonra ve IPC teardown, scheduler mutasyonu, ASID retirement veya yield/context-switch başlamadan explicit düşer. Coverage 18/111'den 20/111'e ilerledi; 91 site unrouted kalır. Production exclusive wrapper hâlâ yoktur; S245 request non-consuming incelenir, alınmaz ve pending kalır.",
    evidence: [
      "S256 focused host grubu final kernel kaynağı üzerinde iki bağımsız koşuda 11/11 PASS verdi: canonical test-result 95 B / SHA-256 2c07f0a50574922424c491ec40d2a364ada2ad650cb922a2036d326c49b26e45.",
      "Exact source coverage: S255 guarded=18/111 başlangıcı yeniden doğrulandı; fatal task termination ve ordinary task_exit current-task-id snapshot'ları common reader membership altına alındı. Yeni toplam guarded=20/111, unrouted=91; additional read-only=2, mutating-while-reader-live=0.",
      "İki yol Option<u64> task-id kopyası çıkarır. Reader immutable SCHEDULER okumasından önce alınır ve explicit drop; IPC teardown, scheduler mutable alias, ASID retirement ile yield/context-switch çağrılarının tamamından önce gerçekleşir. Scheduler referansı guard dışına kaçmaz. Bu snapshot'lar IPC transaction yolu değildir; yeni IPC kilidi iddiası yapılmaz.",
      "S238'den S256'ya exact sıra-düzenli dependency matrisi 20 grup / 284/284 PASS verdi. Ham summary iki bağımsız koşuda byte-equal 1900 B / SHA-256 f7657fa73209667df7e6590df70123f20a517d42a6b2296a926de42ed9de30d4; süre-normalize summary 2000 B / SHA-256 e9af3995401a477ec0bc6a9edee14b461f5db0687c4abb0a2122bceff46dbc02 oldu. S240 receipt ve SGI gruplarının ikisi de dahildir.",
      "RPi5 AArch64 normal/SMP profilleri ikişer koşuda byte-equal PASS verdi. Normal: 357427 B / 693 warning başlığı / SHA-256 3a0c4049f71adc2e3bedc1f26c76113f41ab9ea08092280f35018d5ac0f21dd6. SMP: 357369 B / 693 warning başlığı / SHA-256 67c2ed28f43d9184d8880d0ead3afe87bf7468879e71795a23bca46d1a789c41. Zero-warning iddiası yoktur.",
      "Exact production sırası: CPU1 timer IRQ → GIC EOI → S246 request preflight → S247 → S248 → S249 → S250 → S251 → S252 → S253 → S254 → S255 → S256 20/111 coverage preflight → S242 service → scheduler dispatch. Exact S245 request yalnız non-consuming metadata view ile incelenir, alınmaz ve pending kalır.",
      "Filtresiz workspace aynı frozen S96 identity kapısında exit 101 verdi: 51178 B / SHA-256 78512c5c0aa0058d6a9731e067964bc78e5a3c5523563443386627fcdb1361e6. Exact yedi tarihsel assertion dışlandığında final manifest-aware iki audit 218 grup / 2030 PASS / 0 fail / 7 filtered oldu. Süre-normalize test-result özetleri byte-equal 22118 B / SHA-256 3f49982c9e8483aceb598a8b36906d80f3ca639630b014ad1c86e842023f9389 verdi; full-workspace GREEN iddia edilmez.",
      "S256 physical/device operations=0; RUNBOOK_EXECUTED_IN_S256=NO. Tarihsel S124 physical BOOT8H PASS ve tam operatör sırası görünür biçimde korunur.",
      "Canlı marker: S256_11_OF_11_TASK_EXIT_IDENTITY_READ_ACCESS_GUARD_EXPANSION_TWO_ADDITIONAL_COPY_RETURNING_READ_ONLY_LOCAL_IRQ_GUARDED_TASK_ID_SNAPSHOTS_READER_EXPLICITLY_DROPPED_AFTER_COPY_BEFORE_IPC_TEARDOWN_SCHEDULER_MUTATION_ASID_RETIREMENT_OR_YIELD_CONTEXT_SWITCH_TOTAL_20_OF_111_GUARDED_91_UNROUTED_NO_SCHEDULER_REFERENCE_ESCAPES_NO_CONTEXT_SWITCH_CAPABLE_OR_MUTATING_SITE_GUARDED_WHILE_READER_LIVE_PRODUCTION_EXCLUSIVE_WRAPPER_ABSENT_S245_REQUEST_INSPECTED_NONCONSUMING_NOT_TAKEN_REMAINS_PENDING_AWAITING_COVERAGE_NO_PROVIDER_AUTHORITY_NO_EXCLUSION_PROOF_NO_S244_ADMISSION_NO_S243_S236_INVOCATION_NO_SGI_NO_SAFE_RUNTIME_EXECUTION_CLAIM_AARCH64_NORMAL_SMP_COMPILED_WORKSPACE_2030_PASS_7_HISTORICAL_G8H_ASSERTIONS_RED_PHYSICAL_QEMU_CPU2_CPU3_HOTPLUG_SOAK_GENERIC_SMP_OPEN_FULL_PHYSICAL_RUNBOOK_VISIBLE_S416_TO_S466_S441_NO_RUNBOOK_EXECUTED_IN_S256_VERIFIED.",
    ],
    commands: [
      "cargo test --quiet -p aselsan_microkernel_simulation --test g8l_target_dispatch_scheduler_owner_scheduler_mutation_production_migration_lifecycle_s255_task_exit_identity_read_access_guard_expansion -- --test-threads=1",
      "cargo check --quiet -p aselsan_kernel --target aarch64-unknown-none --no-default-features --features board-rpi5",
      "cargo check --quiet -p aselsan_kernel --target aarch64-unknown-none --no-default-features --features board-rpi5,smp",
      "cargo test --workspace --quiet -- --test-threads=1 --skip wiring_does_not_mutate_timer_gic_boot_or_expand_runtime_scope --skip s97_runtime_and_layout_identities_are_unchanged --skip clean_bridge_literal_include_closure_is_manifest_complete --skip clean_image_make_recipe_inputs_are_exact_and_manifested --skip s99_and_s98_are_narrowly_historically_versioned --skip s97_s98_inputs_and_make_history_are_narrowly_versioned --skip historical_s90_and_s100_inputs_remain_exact",
    ],
    terminalSessions: [
      {
        id: "s256-g8l-task-exit-identity-read-access-guard-expansion",
        title: "G8l S256 task-exit identity read-access guard genişletmesi",
        commandLines: [
          "cargo test --quiet -p aselsan_microkernel_simulation --test g8l_target_dispatch_scheduler_owner_scheduler_mutation_production_migration_lifecycle_s255_task_exit_identity_read_access_guard_expansion -- --test-threads=1",
        ],
        outputLines: [
          "test result: ok; S256 focused 1 group / 11 passed; 0 failed",
          "source coverage: 7 units / 111 direct SCHEDULER sites / previous=18 / additional=2 / guarded=20 / unrouted=91",
          "new routes: fatal termination + ordinary task_exit current-task-id snapshots / local IRQ / Option<u64> copy-returning read-only",
          "reader explicit drop precedes IPC teardown / scheduler mutation / ASID retirement / yield-context-switch",
          "production exclusive wrapper absent; S245 request inspected non-consuming, not taken, remains pending",
        ],
        exitCode: 0,
        outputMode: "selected",
      },
    ],
    terminalSessionsNote:
      "S256 terminal özeti iki copy-returning task-exit identity snapshot'ını ve guard'ın tüm teardown/mutasyon/context-switch işinden önce düşmesini doğrular; 91 unrouted site nedeniyle whole-scheduler exclusion provider authority/proof/admission değildir.",
    limitations: [
      "S256 yalnız 2 ek copy-returning read-only snapshot ile toplam 20/111 coverage'tır; 91 scheduler erişimi unrouted kalır.",
      "Reader membership kopyadan sonra explicit düşer; IPC teardown, scheduler mutasyonu, ASID retirement veya context switch reader canlıyken başlamaz ve scheduler referansı guard dışına çıkmaz.",
      "Production exclusive acquisition wrapper'ı coverage tamamlanmadan yayımlanmadı; provider authority, exclusion proof, lease veya S244 admission yoktur.",
      "Exact S245 request yalnız read-only view ile incelenir, alınmaz ve pending kalır; S243/S236 production girişi veya SGI yoktur.",
      "QEMU RPi5 whole-scheduler provider yolunu doğrulamaz; fiziksel RPi, CPU2/CPU3, hotplug, soak ve Generic SMP açıktır.",
      "S256 fiziksel/device operasyonu yapmadı; RUNBOOK_EXECUTED_IN_S256=NO.",
    ],
  },