From 024f3b8ed6d4a617d6d45d21c2d326f69be74b17 Mon Sep 17 00:00:00 2001
From: Richard Loyer <richard.loyer@c42.lu>
Date: Sun, 24 May 2026 17:16:44 +0200
Subject: [PATCH] Chantier 1 clos: prefill pp2048 sain (46t/s), hang=cli only
 hors JNI

---
 .claude/scheduled_tasks.lock    |  1 +
 docs/01_fix_prefill_overflow.md | 10 ++++++++++
 2 files changed, 11 insertions(+)
 create mode 100644 .claude/scheduled_tasks.lock
 create mode 100644 docs/01_fix_prefill_overflow.md

diff --git a/.claude/scheduled_tasks.lock b/.claude/scheduled_tasks.lock
new file mode 100644
index 0000000..83b14a8
--- /dev/null
+++ b/.claude/scheduled_tasks.lock
@@ -0,0 +1 @@
+{"sessionId":"45eccd49-4ce6-4a07-af1c-9bff461d40c9","pid":1030431,"procStart":"52754552","acquiredAt":1779633135793}
\ No newline at end of file
diff --git a/docs/01_fix_prefill_overflow.md b/docs/01_fix_prefill_overflow.md
new file mode 100644
index 0000000..aa4396e
--- /dev/null
+++ b/docs/01_fix_prefill_overflow.md
@@ -0,0 +1,10 @@
+# Chantier 1 — prefill multi-ubatch (cli hang pp512+)
+
+## Symptôme
+cli prompt court OK; gros prefill pend. bench pp512 OK (1 ubatch). unaccounted=2^44 = cosmétique.
+Hyp: prompt > n_ubatch → 2e ubatch prefill GDN → boucle handoff état S.
+
+## Étape 1: trouver le seuil
+
+## Conclusion: NON-BUG cote moteur
+bench pp2048 (4 ubatches @b512) = 46.2 t/s OK. Multi-ubatch sain. cli court=8tok gen OK; cli ~160tok pend = bug cli interactif/reasoning, PAS lib. Kazeia = lib JNI, pas cli. unaccounted 2^44 = cosmetique breakdown. => chantier 1 CLOS, aucun fix moteur. Bench est le harness de ref. cli a eviter prod.