# Kernel Lifecycle Subsystem Summary Status: controlled lifecycle-to-subsystem summary with nucleus-first coupling Scope: report-only integration between the kernel lifecycle runner, kernel subsystem registry, and nucleus-kernel coupling gate. ## Purpose This slice connects three existing evidence surfaces: ```text kernel lifecycle runner kernel subsystem registry nucleus-kernel coupling gate ``` The lifecycle runner can move a local in-memory kernel state machine from `created` to `runtime-entry-recovery-audit-review-disposition-review-closeout-archive-gate-review-disposition-closeout-archive-gate-observation-view-ready` through gated internal state changes. The subsystem registry exposes boot, runtime, scheduler, memory, process, filesystem, network, device, and security subsystem posture. The nucleus-kernel coupling gate requires a no-effect nucleus task plan before the summary may claim OS-readiness metadata. The summary combines those surfaces into one deterministic report so the project can answer: ```text Which kernel subsystems are lifecycle-ready? Which subsystems still deny authority? Did the nucleus approve only no-effect coupling evidence? Did the lifecycle stay externally inert? Is the registry still no-effect? ``` ## Files ```text include/latticra/kernel_lifecycle_subsystem_summary.h src/kernel_lifecycle_subsystem_summary.c tests/kernel_lifecycle_subsystem_summary.c tools/kernel_lifecycle_subsystem_summary_report.c scripts/test-kernel-lifecycle-subsystem-summary.sh scripts/test-kernel-lifecycle-subsystem-summary-report-runner.sh .github/workflows/kernel-lifecycle-subsystem-summary.yml docs/KERNEL_LIFECYCLE_SUBSYSTEM_SUMMARY.md ``` ## Default target The default summary request allows the lifecycle runner to reach: ```text runtime-entry-recovery-audit-review-disposition-review-closeout-archive-gate-review-disposition-closeout-archive-gate-observation-view-ready ``` That produces: ```text summary_status=summary-ready final_state=runtime-entry-recovery-audit-review-disposition-review-closeout-archive-gate-review-disposition-closeout-archive-gate-observation-view-ready lifecycle_complete=1 lifecycle_step_count=55 lifecycle_state_change_count=55 external_effect_performed=0 registry_no_effect=1 nucleus_coupling_status=nucleus-kernel-coupling-ready os_readiness_status=os-metadata-ready nucleus_coupling_ready=1 nucleus_no_effect_chain_ok=1 no_external_effect_chain=1 evidence_level=58 ``` ## Subsystem posture Expected readiness examples: ```text boot -> boot-sequence-seeded scheduler -> scheduler-run-entry-ready runtime -> runtime-entry-recovery-audit-review-disposition-review-closeout-archive-gate-review-disposition-closeout-archive-gate-observation-view-ready memory -> memory-map-ready process -> ipc-table-ready filesystem -> vfs-namespace-ready network -> network-syscall-metadata-ready device -> interrupt-table-ready security -> security-not-production-boundary ``` Authority remains denied: ```text runtime_entry_recovery_audit_review_disposition_review_closeout_observation_view_allowed=0 runtime_entry_recovery_audit_review_disposition_review_closeout_archive_gate_observation_view_allowed=0 runtime_entry_recovery_audit_review_disposition_review_closeout_archive_gate_review_observation_view_allowed=0 runtime_entry_recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_observation_view_allowed=0 runtime_entry_recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_closeout_observation_view_allowed=0 runtime_entry_recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_closeout_archive_gate_observation_view_allowed=0 runtime_entry_recovery_audit_review_disposition_review_observation_view_allowed=0 runtime_entry_recovery_audit_review_disposition_observation_view_allowed=0 runtime_entry_recovery_audit_review_observation_view_allowed=0 runtime_entry_recovery_audit_observation_view_allowed=0 runtime_entry_recovery_closeout_observation_view_allowed=0 runtime_entry_recovery_plan_observation_view_allowed=0 runtime_entry_recovery_disposition_observation_view_allowed=0 runtime_entry_recovery_outcome_observation_view_allowed=0 runtime_entry_recovery_boundary_observation_view_allowed=0 runtime_entry_persistence_boundary_observation_view_allowed=0 runtime_entry_quiescent_return_observation_view_allowed=0 runtime_entry_idle_return_observation_view_allowed=0 runtime_entry_process_return_observation_view_allowed=0 runtime_entry_scheduler_return_observation_view_allowed=0 runtime_entry_post_resume_observation_view_allowed=0 runtime_entry_user_mode_resume_view_allowed=0 runtime_entry_syscall_exit_view_allowed=0 runtime_entry_syscall_return_view_allowed=0 runtime_entry_syscall_dispatch_view_allowed=0 runtime_entry_syscall_gate_view_allowed=0 runtime_entry_privilege_level_view_allowed=0 runtime_entry_address_space_view_allowed=0 runtime_entry_stack_view_allowed=0 runtime_entry_register_view_allowed=0 runtime_entry_frame_allowed=0 runtime_entry_admission_allowed=0 runtime_entry_allowed=0 persistence_boundary_observation_allowed=0 persistence_boundary_allowed=0 persistence_commit_allowed=0 recovery_boundary_observation_allowed=0 recovery_boundary_allowed=0 recovery_plan_allowed=0 recovery_plan_observation_allowed=0 recovery_disposition_allowed=0 recovery_disposition_observation_allowed=0 recovery_outcome_allowed=0 recovery_outcome_observation_allowed=0 recovery_audit_review_disposition_review_closeout_allowed=0 recovery_audit_review_disposition_review_closeout_observation_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_observation_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_observation_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_observation_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_closeout_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_closeout_observation_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_closeout_archive_gate_allowed=0 recovery_audit_review_disposition_review_closeout_archive_gate_review_disposition_closeout_archive_gate_observation_allowed=0 recovery_audit_review_disposition_review_allowed=0 recovery_audit_review_disposition_review_observation_allowed=0 recovery_audit_review_disposition_allowed=0 recovery_audit_review_disposition_observation_allowed=0 recovery_audit_review_allowed=0 recovery_audit_review_observation_allowed=0 recovery_audit_allowed=0 recovery_audit_observation_allowed=0 recovery_closeout_allowed=0 recovery_closeout_observation_allowed=0 quiescent_return_observation_allowed=0 quiescent_return_allowed=0 quiescent_state_read_allowed=0 scheduler_execution_allowed=0 scheduler_selection_allowed=0 scheduler_dispatch_allowed=0 scheduler_handoff_allowed=0 scheduler_activation_allowed=0 scheduler_run_entry_allowed=0 memory_allocation_allowed=0 process_spawn_allowed=0 syscall_dispatch_allowed=0 ipc_send_allowed=0 ipc_receive_allowed=0 ipc_queue_mutation_allowed=0 filesystem_lookup_allowed=0 filesystem_read_allowed=0 filesystem_write_allowed=0 namespace_mutation_allowed=0 device_open_allowed=0 device_read_allowed=0 device_write_allowed=0 driver_probe_allowed=0 driver_load_allowed=0 driver_bind_allowed=0 interrupt_allowed=0 interrupt_mask_allowed=0 interrupt_unmask_allowed=0 interrupt_dispatch_allowed=0 interrupt_ack_allowed=0 timer_tick_allowed=0 timer_arm_allowed=0 timer_disarm_allowed=0 scheduler_tick_allowed=0 run_queue_mutation_allowed=0 enqueue_allowed=0 dequeue_allowed=0 dispatch_allowed=0 context_switch_allowed=0 register_save_allowed=0 register_restore_allowed=0 stack_switch_allowed=0 address_space_switch_allowed=0 preemption_allowed=0 time_accounting_allowed=0 time_read_allowed=0 cpu_usage_write_allowed=0 quota_update_allowed=0 scheduler_credit_update_allowed=0 process_wake_allowed=0 persistence_allowed=0 recovery_authority_allowed=0 dma_allowed=0 hardware_effect_allowed=0 nucleus_boot_allowed=0 nucleus_runtime_entry_allowed=0 nucleus_scheduler_run_entry_allowed=0 nucleus_context_switch_allowed=0 nucleus_register_save_allowed=0 nucleus_register_restore_allowed=0 nucleus_host_effect_allowed=0 ``` Subsystem authority labels include: ```text boot-denied runtime-entry-denied scheduler-execution-denied memory-allocation-denied process-execution-denied filesystem-denied network-denied device-denied not-production-boundary ``` ## Controlled boundary This slice may report internal lifecycle state mutation: ```text lifecycle_state_mutated=1 ``` It must still report: ```text external_effect_performed=0 no_external_effect_chain=1 ``` This is a summary/reporting slice only. It does not expand kernel authority, enter runtime, perform a context switch, save or restore registers, or claim product readiness. ## Validation Run: ```sh sh scripts/test-kernel-lifecycle-subsystem-summary.sh sh scripts/test-kernel-lifecycle-subsystem-summary-report-runner.sh ``` Expected output: ```text kernel_lifecycle_subsystem_summary: ok kernel_lifecycle_subsystem_summary_report_runner: ok ``` The guards verify: ```text default request targets runtime-entry-recovery-audit-review-disposition-review-closeout-archive-gate-review-disposition-closeout-archive-gate-observation-view-ready summary reaches runtime-entry-recovery-audit-review-disposition-review-closeout-archive-gate-review-disposition-closeout-archive-gate-observation-view-ready summary marks boot/scheduler/memory/process/filesystem as lifecycle-ready metadata runtime recovery-audit-review-disposition-review-closeout-archive-gate-review-disposition-closeout-archive-gate-observation-view metadata is ready while runtime remains not entered runtime entry recovery-audit-review-disposition-review-closeout archive-gate review-disposition closeout archive-gate observation view, recovery-audit-review-disposition-review-closeout archive-gate review-disposition closeout observation view, recovery-audit-review-disposition-review-closeout archive-gate review observation view, recovery-audit-review-disposition-review-closeout archive-gate observation view, recovery-audit-review-disposition-review-closeout observation view, recovery-audit-review-disposition-review observation view, recovery-audit-review-disposition observation view, recovery-audit-review observation view, recovery-audit observation view, recovery-closeout observation view, recovery-outcome observation view, recovery-disposition observation view, recovery-plan observation view, recovery-boundary observation view, persistence-boundary observation view, quiescent-return observation view, idle-return observation view, process-return observation view, scheduler-return observation view, post-resume observation view, user-mode-resume view, syscall-exit view, syscall-return view, syscall-dispatch view, syscall-gate view, privilege-level view, address-space view, stack view, register view, frame, admission, and runtime entry remain denied nucleus-kernel coupling reports os-metadata-ready only with no-effect evidence nucleus boot, runtime entry, scheduler run entry, context switch, register save, register restore, and host effect remain denied scheduler execution remains denied memory allocation remains denied process spawn remains denied syscall dispatch remains denied IPC send, receive, and queue mutation remain denied filesystem lookup, read, write, and namespace mutation remain denied device open, read, write, driver probe, driver load, driver bind, interrupt mask, interrupt unmask, interrupt dispatch, interrupt ack, timer tick, timer arm, timer disarm, scheduler tick, scheduler selection, scheduler dispatch, scheduler handoff, scheduler activation, scheduler run-entry, run queue mutation, enqueue, dequeue, dispatch, context switch, register save, register restore, stack switch, address space switch, preemption, time accounting, time read, CPU usage write, quota update, scheduler credit update, process wake, DMA, and hardware effect remain denied network and device authority remain denied limited lifecycle summary reports incomplete readiness external_effect_performed=0 remains true ``` ## Non-claims This slice does not make Latticra bootable, runnable as an operating system, product-ready, or authority-expanded. ## Next possible lane A later slice may add virtual device binding metadata, scheduler-to-timer handoff metadata, or define a production-authority contract. Those should remain report-only unless a separate authority contract is introduced first.