gpt_read() stopped at max used entries (16 for the identity code, 4 in the
mint): a disk whose StarshipOS partitions came after the first max read as
having none, and the entries after max were never range-checked.
Now every entry is checked and every used one counted; a good table with more
used entries than max is GPT_MANY (the first max in parts), and the identity
code says "GPT: a USB drive has more than 16 partitions -- not used". Other
callers treat anything but GPT_OK as before.
Tested first, seen to fail: qemu_session.py gpt_many -- a data stick with its
two partitions as entries 17 and 18 after 16 others, and the same with an entry
19 past the usable range: both "not this system's stick" before (silently cut,
entry 19 never checked; logs/20261112-162236). After: "more than 16
partitions" and "a damaged partition table" (logs/20261112-162921).
Regressions: gpt_bad_entries, gpt_foreign PASS. gpt_zuse FAILS, on a stale
expectation unrelated to this change -- an identity-only GPT drive with no
system stick has been held silently as a possible real Zuse since #92 Task 4;
its log is kept here. The gpt_many images are made before the boot: a first
version made them after, failed in sgdisk and left its QEMU running, stopped
by hand (logs/20261112-162003).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
A data stick hot-plugged with every read at its identity partition's first
sector (LBA 2048) failing, after a boot with no drive; it expects a message
naming the identity partition, Artemis let go (both partitions or neither,
#179), no prompt, and the same stick without the fault going on to genesis.
add_stick() takes fail_read_sector for it.
It FAILS today, and is kept so (Captain Bob, 2026-11-12: "keep the test"):
the partition attaches anyway and Zuse is minted onto it, because
blk_format_or_load_disk() ignores the header read's result and takes an
unreadable disk as blank -- filed as #187. #179 is parked: its half-attached
state cannot be reached from a disk fault. The run: logs/20261112-160050.
Not part of acceptance.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
logs/20261112-124144/PROTOCOL.md: the four boots 538/538, word_count=318,
dict_hash 0x8c92508f748f99cf on all three; test-32 39 programs, 1,869,197
checks, 0 failures; the proofs (StarForth, 37 s); the images; the documents.
The tree clean before and after.
Stage 3 (riscv64) was stopped while booting, when Captain Bob interrupted to
mean the build pipeline; its partial serial log and console output are kept,
labelled, in logs/20261112-124831/. It was rerun on the same commit and
passed (logs/20261112-130801).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
failed() printed "MINT-ZUSE: failed -- nothing changed" on every failure
after YES, though by then gpt_write_one() had rewritten the stick's partition
table and the identity partition's first blocks had been zeroed.
gpt_write_one() now tells the two apart: GPT_EIO when its first write failed
(nothing written), GPT_PART when a later write or flush failed (the disk is
changed). MINT-ZUSE keeps "failed -- nothing changed" for GPT_EIO only, and
says "failed -- the stick was erased; Zuse not minted" for every failure
after the table is written. The marker is still written last.
Tested first, seen to fail: qemu_session.py mint_part_fail (writes fail only
at the identity partition's first sector, LBA 2048) -- "nothing changed",
logs/20261112-122132. After: mint_part_fail PASS; mint_fail (every write
fails) still "nothing changed", PASS; replace (the success path) PASS. Their
logs here. FABRIC-3 XLVIII.20.
Captain Bob, 2026-11-12: "start #168".
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
logs/20261112-114545/PROTOCOL.md: one stage per foreground command (paused
between stages 2 and 3 for Captain Bob's emergency, then resumed on the same
commit): the four boots 538/538, word_count=318, dict_hash
0x8c92508f748f99cf on all three; test-32 39 programs, 1,869,197 checks, 0
failures; the proofs (StarForth, 44 s); the images; the documents. The tree
clean before and after.
The evidence for the held batch: plan section 8 (the FMEA in the PR review),
the notes, and scripts/ci_litter_check.sh (#129).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
logs/20261112-001304/PROTOCOL.md: scripts/nightly.sh protocol, one stage per
foreground command: accept amd64, aarch64, riscv64, stick-high -- 538/538,
word_count=318, dict_hash 0x8c92508f748f99cf on all three; test-32 39 programs,
1,869,197 checks, 0 failures; the proofs (StarForth, 36 s); the images (PC,
RASPI, MILKV); the documents (book, fabric, dictionary, vol1-3, api). The tree
clean before and after. Every stage's output in logs/20261112-001304/protocol/,
the boots' serial logs and DoE CSVs beside it.
The first protocol run: the evidence the PR's Acceptance check now asks for.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
Run one stage at a time in the foreground through scripts/nightly.sh:
20261111-185352 amd64 PASS
20261111-185600 aarch64 PASS
20261111-185950 riscv64 PASS
20261111-190128 stick-high PASS
PARITY:V4_POST tests=538 pass=538 fail=0, POST: PASSED, [zuse@Hera] ok>
on every boot; word_count=318 dict_hash=0x8c92508f748f99cf on all three;
test-32 39 programs, 0 failures.
scripts/nightly.sh images -- the stage the version.h put-back had broken --
built PC, RASPI and MILKV and left the tree as committed.
DoE CSVs for every boot (empty, as every v4 acceptance boot's: #141).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
amd64, aarch64, riscv64 (clean qemu), stick-high, test-32, run one at a
time in the foreground through scripts/nightly.sh:
PARITY:V4_POST tests=538 pass=538 fail=0, POST: PASSED, [zuse@Hera] ok>
on every boot; PARITY:V4_SYSTEM word_count=318
dict_hash=0x8c92508f748f99cf on all three; test-32 39 programs, 0 failures.
No tracked file changed across the five builds.
20261111-170703 amd64 PASS
20261111-170909 aarch64 PASS
20261111-171235 riscv64 PASS
20261111-171410 stick-high PASS
Also kept as evidence:
20261111-170134 amd64 on aec7ddb5 (before the clean-tree fix), PASS
20261111-170544 amd64 on 90c5c140, stopped by me during boot: it had been
started in the background, against the protocol, and was
rerun in the foreground as 20261111-170703
DoE CSVs for every completed boot (experiments/bare_metal/runs).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
Their pointers were committed in a5ed8c3d (2026-08-01) and the objects were
never uploaded: the server answers 404 for all of them, and no copy exists
(Captain Bob, 2026-11-11: "they can be trimmed out").
Removed: 3,827 phase-1 logs (docs/working/archive/legacy/phase-1), 3 in
docs/working/archive/historical, 106 DoE CSVs in experiments/bare_metal/runs,
QEMU_BASELINE.log, docs/SYSTEM_NARRATIVE.log, docs/ontology.log.
Kept: the 5 LaTeX build logs under docs/patent (legal hold) -- excluded from
fetch instead. .lfsconfig excludes every one of these paths, so older commits
check out and LFS fetches run without 404s.
Every LFS pointer left in the tree (1,195) has its object on the server.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
Task 5 of plan 2026-10-29-stick-5, accepted in full, and with it #92:
- amd64, aarch64, riscv64: PARITY:V4_POST tests=538 pass=538 fail=0,
POST: PASSED; word_count=318 dict_hash=0x8c92508f748f99cf on the three
- the PC stick as built, loaded high: 538/538, the prompt
- make -C v4 test-32: 39 programs, 0 failures
Sessions: fallback, replace, mint_fail, system_pull_real; regressions:
every Task 4 session, genesis, stick_genesis, screen_dark_until_login,
screen_dark_after_logout, kbd_typeahead, emergency. Verdicts in
logs/20261110-075036/verdicts/. The plan's Task 5 ticked; STICK.md 11
increment 5a done; FABRIC-3 XLVIII.17; the SER5 bench steps in
boards/BRINGUP.md 4.2.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Accepted in full:
- amd64, aarch64, riscv64: PARITY:V4_POST tests=538 pass=538 fail=0,
POST: PASSED, [zuse@Hera] ok> on a fresh data stick; dict_hash
0xfec8c47cfc6f437f on the three
- the PC stick as built, loaded high: 538/538, the prompt
- make -C v4 test-32: 39 programs, 0 failures
- regressions: v3_keys, genesis on the three, stick_grow, midpull, hotplug
SAVE-BUFFERS on the 16 GiB stick: 5.1-6.1 s before, 1.1 s after; the BAM's
bytes the same (verdicts in logs/20261108-145611/verdicts/). FABRIC-3
XLVIII.14.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Not yet accepted. bam_flush_to_disk() and bam_sync_from_disk() read and
wrote every page of the BAM; with the stick's BAM sized for 256 GiB (6144
devblocks, 24 MiB) every flush of a dirty block moved 24 MiB each way.
They now touch only the pages that hold the slot's bits -- its reserved
bits and one per user block (bam_pages_used()) -- the pages past them are
never set, so the bytes on disk are the same.
Test (qemu_session.py bam_flush, --target qemu-stick --stick-gib 16):
three SAVE-BUFFERS of an Artemis block, each timed, then the BAM hashed.
Before: 5.1 / 5.6 / 6.1 s (the 2 s limit fails; it was set after seeing
this baseline). After: 1.1 / 1.1 / 1.1 s. The BAM's bytes the same either
way: sha256 79197a40...b9e44b50, 5 non-zero bytes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Task 3 of plan 2026-10-29-stick-5, accepted in full:
- amd64, aarch64, riscv64: the proxy Zuse minted on a fresh data stick,
PARITY:V4_POST tests=538 pass=538 fail=0, POST: PASSED, [zuse@Hera] ok>;
dict_hash 0xfec8c47cfc6f437f on the three
- the PC stick as built, loaded high (stick_genesis): 538/538, the prompt
- make -C v4 test-32: 39 programs, 0 failures
Regressions pass. v3_keys failed once (a virtio_blk request never completed,
logs/20261108-132844) and passed on its rerun (logs/20261108-141539).
The plan's Task 3 steps ticked; FABRIC-3 XLVIII.13.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
system=v3: Hestia logged 'virtio_blk: request never completed'; Hera reached the Zuse drive's attach and no further. Task 1's v3_keys (logs/20261108-043612) has no such line and passed. The drives were the same three, passed explicitly. To be rerun; bisected against Task 1 if it fails again.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Not yet accepted (plan 2026-10-29-stick-5, Task 3).
- kernel/Makefile: a v4 `qemu` boot attaches a fresh data stick
(DATASTICK=1) and nothing else; ARTDISK/ZUSEDISK keep the minted pair only
for system=v3 (QEMU_V3_BOOT, from KERNEL_ARGS).
- qemu_session.py: the Makefile's defaults for every mode but those that ask
for the pair by name (stick_artemis, two_sticks, artemis_unsigned,
raw_ident, v3_keys) or for no drive; `zuse` now expects the genesis line.
- nightly.sh: accept stick-high runs stick_genesis (the stick as built).
- .claude/CLAUDE.md "The disks", the stick-high line; disk/README.md (the
pair: tests and v3 only); STICK.md 11, increments 3 and 5 done.
Before the change: zuse on amd64 FAIL -- the pair's "identity confirmed",
no genesis line (logs/20261108-130732).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Task 2 of plan 2026-10-29-stick-5, accepted in full:
- amd64, aarch64, riscv64: PARITY:V4_POST tests=538 pass=538 fail=0,
POST: PASSED, [zuse@Hera] ok>; dict_hash 0xfec8c47cfc6f437f on the three
- the PC stick loaded high: 538/538, POST: PASSED, the prompt
- make -C v4 test-32: 39 programs, 0 failures
The acceptance boots' logs, the accept-*.txt verdicts and test-32's output
(logs/20261108-123847/verdicts/). The plan's Task 2 steps ticked; FABRIC-3
XLVIII.9, with one item for a ruling: blk_flush rewrites the whole BAM, now
sized for 256 GiB.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Not yet accepted (plan 2026-10-29-stick-5, Task 2, step 3).
- gpt.c: the writer, gpt_grow_last() -- the backup entry array and header to
the disk's end, the last partition to the last usable sector (whole MiB,
capped), both headers' CRCs, the backup before the primary, the
protective MBR's size; gpt_alternate_lba().
- sk_v4_grow.c: the volume grown to its partition -- its fence (the Artemis
signature, Zuse's genesis marker) moved to the new top, the header last;
the partition grown no further than the BAM tracks (the block subsystem
places the fence by the device's size, so a volume must fill it).
- sk_v4_identity.c: a stick of 8 GB or more whose GPT ends short of the disk
is grown before its partitions are opened; "Artemis: grown to fill the
stick" / "under 8 GB -- not grown" / "past 256 GiB ... left unused".
- block_subsystem: blk_volume_compute_totals() (compute_totals_from_B,
public) and blk_subsys_set_format_bam_for(); v3's behaviour unchanged.
- mkartemis --bam-for, mkdiskimage.sh --bam-for, kernel/Makefile
STICK_GROW_MIN_BYTES / STICK_ARTEMIS_CAP_GIB: the stick's and data stick's
Artemis BAM sized for 256 GiB (6144 devblocks). STICK.md 5a: 256 GiB (R1).
After: stick_grow PASS (16 GiB: 12129370 user blocks, 8 s POST to prompt;
second boot not grown, recognised; sfdisk --verify: no errors), stick_small
PASS, check_images.sh PASS.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Plan 2026-10-29-stick-5, Task 2, steps 1-2:
- qemu_session.py: --stick-gib N (the session's copy of the stick extended,
sparse); modes stick_grow (16 GiB: grown, over 12000000 user blocks, the
prompt, the first boot's time; the second boot of the same copy not grown
again; sfdisk --verify clean) and stick_small (4 GiB: under 8 GB, not grown,
said so).
- kernel/Makefile: STICK_GIB and STICK_FRESH on qemu-stick, for those.
- check_images.sh: the PC stick's and data stick's Artemis BAM sized for the
256 GiB cap (6144 devblocks).
Before the change: stick_grow FAIL (no growth line, 1137649 user blocks,
sfdisk: the backup GPT not at the end); stick_small FAIL (no line);
check_images.sh FAIL on the two BAM checks only.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Task 1 of plan 2026-10-29-stick-5, accepted in full:
- amd64, aarch64, riscv64: PARITY:V4_POST tests=538 pass=538 fail=0,
POST: PASSED, [zuse@Hera] ok>; dict_hash 0xfec8c47cfc6f437f on the three
- the PC stick loaded high: 538/538, POST: PASSED, the prompt
- make -C v4 test-32: 39 programs, 0 failures
The logs of the acceptance boots (aarch64 044253, riscv64 044558, the stick
high 044725; amd64 044115 is already in), the four accept-*.txt verdicts and
test-32's output. The plan's Task 1 steps ticked; FABRIC-3 XLVIII.8.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
Claude