Files
LithosAnanake/disk
Robert Allan JamesandClaude Sonnet 5 1a2ec565e8 Zero C-compiler warnings on all three architectures; fix real restore_vm_state() bug
Maintainability sweep (prompted by "this is getting hard to maintain"):
fixed the remaining three warning classes after the missing-field-
initializers commit -- 2x -Wsign-compare (control_words.c, cast at the
comparison site rather than changing cf_last_mode's type, which
deliberately holds a -999 sentinel outside vm_mode_t's valid range),
2x -Wstringop-truncation (mkcapsule.c, strncpy+manual-null-terminate
replaced with the idiomatic snprintf equivalent), and 26x
-Wunused-parameter (mostly documented stubs, silenced with the repo's
existing (void)param; idiom).

One of the unused-parameter warnings was not a deliberate stub -- a
real bug. restore_vm_state() (test_common.c) is named, documented, and
called by nine real call sites (acl_words_test.c x8 plus its own
internal use) as "restore saved VM state", but ignored all four of its
parameters and hard-reset to a fixed baseline instead, silently not
restoring what any caller actually saved. Fixed to actually assign the
passed-in dsp/rsp/error/mode. Found while fixing warnings, reported
before touching it, fixed/tested/documented/committed on explicit
instruction.

Verified: all three architectures build with zero C-compiler warnings
(amd64: 3040 -> 0; aarch64's one remaining note is lld-link's own
unrelated linker warning, not a C warning). Full amd64 acceptance boot
post-fix: POST 1003/965/0/0/38 (total/passed/failed/errors/stubs),
"ALL IMPLEMENTED TESTS PASSED!", contract checks (A4'/A1) all passed,
dict_hash=0x24b4279f0670aa3a -- an exact match to this document's own
previously-recorded baseline hash.

.claude/CLAUDE.md corrected to describe the real -Wno-error= exemption
list instead of the "-Wall -Werror" oversimplification. FABRIC-2.md
Section J records the full sweep, including doc-tree staleness findings
flagged but not fixed this pass (docs/lithosananke/ROADMAP.md branch
topology, docs/03-architecture/word-acl/DESIGN.md's Phase 7 claim
contradicting CLAUDE.md, top-level ROADMAP.md's stale StarForth-era
status, the Isabelle pipeline-metrics model mismatch).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-18 22:31:57 -04:00
..

disk/

QEMU disk images used for Artemis (block-storage VM) persistence testing. Mounted via Makefile.starkernel's ARTDISK variable (default disk/artemis.img) as a virtio-blk-pci device on all three architectures' kernel QEMU boots — not scripts/rundisk.sh, which targets a separate, currently-unused disks/ (plural) directory for the hosted VM's --disk-img= flag instead.

  • artemis.img — standard Artemis persistence test disk. Reformatted 2026-08-02: this image had been stuck in a corrupted state (valid LithosAnanke magic header, but data not matching what ART-READ-TEST expects) since before this repo's own git history begins (git log shows it already broken at the initial commit, carried over from the pre-split monorepo). Chasing down the resulting persistent FAIL: persist-read traced to the data, not the code — the write→reboot→read round trip works correctly on a fresh image (see artemis-debug-roundtrip.img below). Reformatted by blanking the file and letting a normal boot format+write-test it; verified PASS: persist-read on amd64, aarch64, and riscv64 against the same image afterward (cross-arch resume, matching the arch-neutral on-disk format .claude/ARTEMIS.md specifies).
  • artemis-debug-roundtrip.img — round-trip regression fixture created during that investigation. Known-good: format → self-test → write-test → reboot → resume → PASS: persist-read, confirmed 3 times in a row. Keep this in a passing state; if a future change breaks it, that's a real regression, not a stale-fixture artifact like artemis.img was.
  • artemis-persist-test.img — persistence round-trip test image (pre-existing; history/state not re-verified during the above investigation).
  • artemis-poison.img — a separate test image (exact scenario not documented elsewhere in the repo as of this writing; name suggests an adversarial/corruption test, not confirmed).
  • artemis-unrecognized-test.img — exercises ART-HALT-UNRECOG (.claude/ARTEMIS.md acceptance criterion #6). Regenerated 2026-08-02: the previous copy of this file had itself been silently reformatted by a since-fixed bug in the generic block subsystem (src/block_subsystem.c) — it carried a valid low-level 'STFR'/v2 header despite being meant to represent foreign disk content, direct forensic evidence of the bug described in .claude/ARTEMIS.md's Build Status item 6. Regenerated as 30MB of a repeating POISON-UNRECOGNIZED-DISK-TEST-FIXTURE--NOT-BLANK-NOT-STFR-NOT-ARTEMIS-- ASCII pattern — deliberately neither blank, nor the block subsystem's own 'STFR' magic, nor Artemis's "ARTEMIS\0" marker. Verified on amd64 and riscv64 post-fix: boot correctly halts (ARTEMIS HALT: unrecognized disk content) and the file's sha256 is now byte-for-byte identical before and after boot. Keep this fixture in this poisoned state — if a future change makes its sha256 change across a boot, that is exactly the regression this fixture exists to catch.

Note on incidental header churn: artemis.img picks up a few changed header bytes on every ordinary boot even though no user data changes — blk_subsys_attach_device() always records a fresh mounted_time on a successfully recognized disk, which gets flushed at shutdown. This is expected bookkeeping, not a bug; revert it before committing rather than carrying timestamp noise in git history.

These are regenerable QEMU raw disk images, not source — see .claude/ARTEMIS.md for the storage model they exercise.