Robert Allan JamesandClaude Sonnet 5
2d773ca923
Local master had 9 unpushed commits building block-backed DoE persistence on Artemis's own disk (FABRIC-3.md SXXXV.3/.4/.12, designed and built 2026-09-17, never pushed) that this branch never inherited after the Tripod/kernel reshuffle diverged history. Ports the mechanism cleanly onto the current Hera/Artemis/Hestia shape: - doe_region.h/.c: growable, CRC-protected trial-summary ring in Artemis's top-of-device metadata fence, immediately past log_region.c's own ceiling (devblock_from_top 98-102). Same accessor/CRC discipline as log_region.c. - log_words.c: DOE-PERSIST-TRIAL and DOE-RESUME-COUNT kernel-only FORTH words. - multiuser-doe.4th: per-ISA tagging (MU-ISA-TAG!) and campaign resume support (MU-EXEC-CAMPAIGN now takes a start-idx). - per-isa-doe.4th (new): RUN-AMD64-CAMPAIGN/RUN-AARCH64-CAMPAIGN/ RUN-RISCV64-CAMPAIGN entry points, resuming from DOE-RESUME-COUNT. - extract_doe_region.py (new): host-side reader, CRC-verified, no filesystem assumptions -- reads the ring directly off a raw disk image. Deliberately not ported: the R/LaTeX report-generation pipeline (analyse_multiuser_doe.R, multiuser_doe_report.tex, build_multiuser_doe_report.sh) -- not needed to prove persistence works, and unscoped for this pass. Verified live on all three architectures: clean boot, word_count 530->532, zero UNKNOWN WORD. amd64 and riscv64 both live-exercised end-to-end (write via DOE-PERSIST-TRIAL, count via DOE-RESUME-COUNT, clean QEMU exit, then read back correctly with extract_doe_region.py against the raw disk image -- no host serial dependency, matching the real bare-metal requirement this campaign is rehearsing for). riscv64 finding (not a defect in this port, no fix applied): DOE-PERSIST-TRIAL failed 3/3 on a first attempt against a fresh disk image with "virtio_blk: vblk_io timed out". Root cause: disk/artemis.img is a sparse file (180KB allocated of a 1GB apparent size); the new DOE region (devblock_from_top 98-102) is genuinely virgin territory on a fresh image, and riscv64's slower TCG emulation missed the existing virtio_blk spin-bound budget (already documented as fragile, FABRIC-3.md 2026-09-09) on that first cold touch. Confirmed by isolation: a plain BLOCK/UPDATE at an already-warm LBN succeeded instantly, the pre-existing LOG-ERROR" (same meta-zone mechanism, an already-warmed offset range) also succeeded, and a reboot reusing the now-partially-warmed disk let DOE-PERSIST-TRIAL succeed immediately and verify correctly on read-back. Pre-existing environmental fragility, not a logic bug in the ported address computation. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
experiments/
Design of Experiments (DoE) campaign data and analysis for the LithosAnanke kernel.
bare_metal/— the bare-metal DoE experiment: blind full-factorial 2⁴ runs measuring the L8 Jacquard mode selector's effect on the Steady-State Machine across amd64/aarch64/riscv64. Seeexperiments/bare_metal/README.mdfor the full directory layout (runs/,latest/,analysis/{charts,tables,report}).
Hosted-VM DoE campaigns (factorial/heartbeat/ablation studies) live under
docs/working/experiments/ instead — this top-level directory is
specifically the kernel/bare-metal side.