Robert Allan JamesandClaude Sonnet 5
9142dda2d6
Root-caused a heap-corruption bug that reliably failed WIREBIND identity attach on the third attach/detach cycle in one boot. sk_console_readline() and sk_console_getkey() captured `active_vm` once from their caller and kept passing that same (possibly long-stale) pointer to sk_repl_idle() on every idle tick serviced while blocked waiting for input. If the VM it pointed at was killed (WIREBIND detach) mid-block, the existing bailout only checked a generic "is anyone attached" boolean -- masked as soon as a different identity attached next -- so blk_vm_flush_all() kept writing into a freed VM struct sitting on kmalloc's own free list, corrupting the free list's linked-list metadata itself. Both idle branches now re-resolve the live active VM fresh from g_repl_active_vm on every tick, matching the dispatch-side fix already made for the sibling bug in §XII.3. Verified: rebuilt amd64, reran the exact three-cycle repro that reliably corrupted the heap before the fix -- free-list census stayed stable through the same idle window that previously collapsed to zero. All three architectures (amd64/aarch64/riscv64) boot clean to the zuse)ok> prompt. kmalloc_debug_census()/kmalloc_debug_census_bytes() kept as permanent diagnostic infrastructure; every other temporary probe added during the investigation was reverted. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EXieurDfDSsDFdnSyusuWo
src/
Hosted StarForth VM implementation (compiled by the root Makefile).
Bare-metal kernel sources live in src/starkernel/; FORTH word
implementations in src/word_source/; the test harness in
src/test_runner/; platform shims in src/platform/.
Entry point / interpreter core
main.c— CLI entry point, VM init, DoE mode dispatch.vm.c— interpreter loop, stacks, dictionary state (the central runtime file).vm_api.c— external VM API implementation.vm_bootstrap.c— VM bootstrap initialization.vm_debug.c— debugging utilities.vm_time.c— time-related VM operations.vm_internal.h— internal-only declarations shared across thevm_*.cfiles, not part of the publicinclude/vm_api.hsurface.repl.c— REPL read-eval-print loop.cli.c— CLI argument parsing.io.c— I/O operations.log.c— logging infrastructure.
Memory / dictionary / blocks
memory_management.c— dictionary allocator.dictionary_management.c— dictionary allocation and search.dictionary_heat_optimization.c— Loop #1 execution-heat tracking.word_registry.c— word registration system.block_subsystem.c— logical→physical block mapper.blkio_file.c,blkio_ram.c,blkio_factory.c— block I/O backends (file-backed, RAM-backed) and the factory that selects between them.stack_management.c— stack operations.
Physics-driven adaptive runtime (7 feedback loops)
physics_runtime.c— main physics coordinator.physics_hotwords_cache.c— Loop #1 hot-words caching.physics_metadata.c— per-word metadata tracking.physics_pipelining_metrics.c— Loop #4 word-transition prediction.physics_execution_hooks.c— execution instrumentation.rolling_window_of_truth.c— Loop #2 circular execution-history buffer.inference_engine.c— Loops #5/#6, statistical inference (window-width, decay-slope).ssm_jacquard.c— L8 Jacquard steady-state mode selector; consumescompudynamics.cfor tuning-word/config lookups.compudynamics.c— generic compudynamics module (cd_tuning_word(),cd_tuning_vm()); the score/UCB/reward/weight constants for the L8 adaptive table live here, not inssm_jacquard.c.heartbeat_export.c— heartbeat metrics export (CSV export function itself not yet implemented — seedocs/working/architecture/heartbeat_csv_export.md).
Math / measurement
math_portable.c— portable math functions.profiler.c— performance profiling.doe_metrics.c— Design of Experiments metrics (2^7 factorial).
Any .bak file alongside a .c file here (doe_metrics.c.bak,
inference_engine.c.bak, vm.c.bak) is a pre-edit backup left by a past
maintenance script (see scripts/remove_loop_conditionals.sh), not a
build input.