Robert Allan JamesandClaude Opus 5.5
604ad7aadc
sk_vm_parked_idle(): saved context + exactly its own IDLE frame. capsule_vm_kill_refusal() is the single kill rule, shared by capsule_vm_kill() and the KILL word: refuse SWITCHED_OUT mid-task, parked with mail pending, or the VM running; allow parked-idle. capsule_vm_kill() now unregisters the switch slot (G6). Finding fixed: vm_registry_alloc() never initialized pending_reap (kmalloc does not zero); C-b's reap_pending walks every participant, so garbage reaped a healthy VM (seen live before any KILL). Now zeroed at alloc. Probe (reverted): baseline KILL refused, slots 3->4->4 (FAIL, proves G6); with Stage D dprobe parked idle, KILL dead, slots 3->4->3, PASS on amd64/ aarch64/riscv64. Acceptance: dict_hash unchanged, relay 3, idle growth 0. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
capsules/
FORTH personality files loaded by the VM at boot. A capsule is an immutable, content-addressed payload; its XXHash64 hash is its identity. Any mutation changes the hash and the birth protocol rejects the image.
Key files
| File | Type | Purpose |
|---|---|---|
init.4th |
(m) MAMA_INIT |
Default Mama VM personality — loaded at LBN 2048 |
ACL.4th |
user | Word-level ACL system; self-activating at boot |
zuse.4th |
user | Bootstrap superuser; loaded by ACL.4th |
doe.4th |
user | DoE workload words (EXEC-DOE) — opt-in |
workload-0.4th … workload-9.4th |
(p) |
Numbered personality variants |
init-l8-*.4th |
(p) |
L8 Jacquard mode variants (stable/volatile/diverse/temporal/transition/omni) |
hermes/init.4th |
(p) |
Hermes baby VM personality |
artemis/init.4th |
(p) |
Artemis baby VM personality |
Block namespace
Block ranges are shared across all loaded capsules — collisions cause silent word-definition overwrites.
| Range | Owner |
|---|---|
| 2048–2099 | init.4th |
| 2100–2199 | doe.4th |
| 3000–3999 | workload capsules |
| 4000+ | user-defined (ACL.4th, zuse.4th, …) |
Each block is limited to 1024 bytes. Verify with wc -c before committing.
See also
experiments/bare_metal/README.md— DoE protocols and block namespace rulesdocs/03-architecture/word-acl/DESIGN.md— ACL system designtools/mkcapsule.c— assembles capsules intocapsule_generated.c- Project root