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hakmem/scripts/build_larson_dev.sh

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CRITICAL FIX: TLS 未初期化による 4T SEGV を完全解消 **問題:** - Larson 4T で 100% SEGV (1T は 2.09M ops/s で完走) - System/mimalloc は 4T で 33.52M ops/s 正常動作 - SS OFF + Remote OFF でも 4T で SEGV **根本原因: (Task agent ultrathink 調査結果)** ``` CRASH: mov (%r15),%r13 R15 = 0x6261 ← ASCII "ba" (ゴミ値、未初期化TLS) ``` Worker スレッドの TLS 変数が未初期化: - `__thread void* g_tls_sll_head[TINY_NUM_CLASSES];` ← 初期化なし - pthread_create() で生成されたスレッドでゼロ初期化されない - NULL チェックが通過 (0x6261 != NULL) → dereference → SEGV **修正内容:** 全 TLS 配列に明示的初期化子 `= {0}` を追加: 1. **core/hakmem_tiny.c:** - `g_tls_sll_head[TINY_NUM_CLASSES] = {0}` - `g_tls_sll_count[TINY_NUM_CLASSES] = {0}` - `g_tls_live_ss[TINY_NUM_CLASSES] = {0}` - `g_tls_bcur[TINY_NUM_CLASSES] = {0}` - `g_tls_bend[TINY_NUM_CLASSES] = {0}` 2. **core/tiny_fastcache.c:** - `g_tiny_fast_cache[TINY_FAST_CLASS_COUNT] = {0}` - `g_tiny_fast_count[TINY_FAST_CLASS_COUNT] = {0}` - `g_tiny_fast_free_head[TINY_FAST_CLASS_COUNT] = {0}` - `g_tiny_fast_free_count[TINY_FAST_CLASS_COUNT] = {0}` 3. **core/hakmem_tiny_magazine.c:** - `g_tls_mags[TINY_NUM_CLASSES] = {0}` 4. **core/tiny_sticky.c:** - `g_tls_sticky_ss[TINY_NUM_CLASSES][TINY_STICKY_RING] = {0}` - `g_tls_sticky_idx[TINY_NUM_CLASSES][TINY_STICKY_RING] = {0}` - `g_tls_sticky_pos[TINY_NUM_CLASSES] = {0}` **効果:** ``` Before: 1T: 2.09M ✅ | 4T: SEGV 💀 After: 1T: 2.41M ✅ | 4T: 4.19M ✅ (+15% 1T, SEGV解消) ``` **テスト:** ```bash # 1 thread: 完走 ./larson_hakmem 2 8 128 1024 1 12345 1 → Throughput = 2,407,597 ops/s ✅ # 4 threads: 完走(以前は SEGV) ./larson_hakmem 2 8 128 1024 1 12345 4 → Throughput = 4,192,155 ops/s ✅ ``` **調査協力:** Task agent (ultrathink mode) による完璧な根本原因特定 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-07 01:27:04 +09:00
#!/usr/bin/env bash
set -euo pipefail
# build_larson_dev.sh — deterministic dev builds for Larson (Tiny)
#
# Usage:
# scripts/build_larson_dev.sh [--route] [--frontgate] [--clean]
#
# Profiles (defaults):
# - NEW_3LAYER_DEFAULT=1 (3-layer front)
# - BOX_REFACTOR_DEFAULT=1 (box refactor on)
# - USE_LTO=0 OPT_LEVEL=1 (debuggability)
# - Adds EXTRA_CFLAGS based on flags:
# --route → -DHAKMEM_ROUTE=1 (alloc/free route fingerprint)
# --frontgate → -DHAKMEM_TINY_FRONT_GATE_BOX=1 (Front Gate Box)
ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")"/.. && pwd)"
cd "$ROOT_DIR"
CLEAN=0
ROUTE=0
FRONTGATE=0
for a in "$@"; do
case "$a" in
--clean) CLEAN=1 ;;
--route) ROUTE=1 ;;
--frontgate) FRONTGATE=1 ;;
*) echo "Unknown arg: $a" >&2; exit 2 ;;
esac
done
[[ $CLEAN -eq 1 ]] && make clean
XCF=()
[[ $ROUTE -eq 1 ]] && XCF+=(" -DHAKMEM_ROUTE=1")
[[ $FRONTGATE -eq 1 ]] && XCF+=(" -DHAKMEM_TINY_FRONT_GATE_BOX=1")
echo "[build] NEW_3LAYER_DEFAULT=1 BOX_REFACTOR_DEFAULT=1 USE_LTO=0 OPT_LEVEL=1"
[[ $ROUTE -eq 1 ]] && echo "[build] EXTRA_CFLAGS+=-DHAKMEM_ROUTE=1"
[[ $FRONTGATE -eq 1 ]] && echo "[build] EXTRA_CFLAGS+=-DHAKMEM_TINY_FRONT_GATE_BOX=1"
make NEW_3LAYER_DEFAULT=1 BOX_REFACTOR_DEFAULT=1 USE_LTO=0 OPT_LEVEL=1 \
EXTRA_CFLAGS+="${XCF[*]}" larson_hakmem
echo ""
echo "✓ Built ./larson_hakmem (dev config)"
echo "Quick run (tput mode):"
echo " HAKMEM_QUIET=1 HAKMEM_TINY_SUKESUKE=0 HAKMEM_TINY_TRACE_RING=0 \\"
echo " HAKMEM_TINY_FREE_TO_SS=0 HAKMEM_TINY_MUST_ADOPT=0 HAKMEM_TINY_REG_SCAN_MAX=64 \\"
echo " ./larson_hakmem 10 8 128 1024 1 12345 4"
echo ""
echo "Quick run (pf/sys mode):"
echo " HAKMEM_QUIET=1 HAKMEM_TINY_SUKESUKE=0 HAKMEM_TINY_TRACE_RING=0 \\"
echo " HAKMEM_TINY_FREE_TO_SS=1 HAKMEM_TINY_MUST_ADOPT=1 HAKMEM_TINY_SS_ADOPT_COOLDOWN=64 HAKMEM_TINY_REG_SCAN_MAX=32 \\"
echo " ./larson_hakmem 10 8 128 1024 1 12345 4"