Sol's r12 confirm closed F18/F19 and found one MINOR residual on F20:
rev 12 assigned the terminated ordinary writer's committed-but-unpointed
content to §4.5 repair, but §4.5 enumerates pointers and repairs the
opposite state (pointer present, content absent) — unpointed content is
outside its input, so the §7.10 assertion had no conforming transition.
Per the prescribed correction: the §4.5 repair assertion is removed from
§3.7 and §7.10; the no-upsert assertion stays; the state is what §3.7
and §7.16 already define — inert unpointed content (no pointer, no read
path, no repair transition; a §4.5 cycle run against it changes
nothing), never acknowledged, converging only through the client's
retry as a fresh lock acquisition under a new token that recommits and
completes the pointer upsert. Preamble Revision 13 paragraph added.
sol r11 APPROVE minors:
- F19: strictly-less-than refusal made explicit; absent recorded token
compares lower than every minted token, first acceptance creates the
record; §7.10 virgin-locator control + delayed-first-grant race.
- F18 residual closed: §7.10 managed-deletion fault predicate restated
as the exact §4.7 predicate (advance's epoch mint and token record
permitted).
- F20: pre-advance linearization boundary distinguishes database
halves — pair-conditioned step 2 for deletion/repair; terminated
ordinary writer performs no pointer upsert, retry is a fresh
acquisition; §7.10 control runs both branches.
- §8 item 16 revision-12 clause; preamble Revision 12 paragraph.
The fence-advance is itself fenced against an older acquisition: a
per-locator acquisition token minted by the lock authority at every
lock grant, carried unchanged across the acquisition's brain
operations and swap-loop retries, compared and recorded by the brain
store atomically with every brain mutation (advance included). A
superseded acquisition's delayed advance is refused, mints nothing,
and yields no usable fence (mandatory abort-release-surface,
expected on deadline supersession). The 'refused unconditionally'
claim is precisified to the exact linearization boundary; the
pre-step-1 interruption predicates are restated over exact
content/database state, expressly permitting the advance's
epoch/token change (F18). New §7.10 stale-advance refusal and
pre-advance linearization controls; token invariants added to the
fence static controls (§7.10, §7.16); §8 item 16 and preamble
extended.
fred