1da8754d45
**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>
57 lines
1.8 KiB
Bash
Executable File
57 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# build_larson_dev.sh — deterministic dev builds for Larson (Tiny)
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#
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# Usage:
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# scripts/build_larson_dev.sh [--route] [--frontgate] [--clean]
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#
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# Profiles (defaults):
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# - NEW_3LAYER_DEFAULT=1 (3-layer front)
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# - BOX_REFACTOR_DEFAULT=1 (box refactor on)
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# - USE_LTO=0 OPT_LEVEL=1 (debuggability)
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# - Adds EXTRA_CFLAGS based on flags:
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# --route → -DHAKMEM_ROUTE=1 (alloc/free route fingerprint)
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# --frontgate → -DHAKMEM_TINY_FRONT_GATE_BOX=1 (Front Gate Box)
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ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")"/.. && pwd)"
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cd "$ROOT_DIR"
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CLEAN=0
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ROUTE=0
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FRONTGATE=0
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for a in "$@"; do
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case "$a" in
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--clean) CLEAN=1 ;;
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--route) ROUTE=1 ;;
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--frontgate) FRONTGATE=1 ;;
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*) echo "Unknown arg: $a" >&2; exit 2 ;;
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esac
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done
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[[ $CLEAN -eq 1 ]] && make clean
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XCF=()
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[[ $ROUTE -eq 1 ]] && XCF+=(" -DHAKMEM_ROUTE=1")
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[[ $FRONTGATE -eq 1 ]] && XCF+=(" -DHAKMEM_TINY_FRONT_GATE_BOX=1")
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echo "[build] NEW_3LAYER_DEFAULT=1 BOX_REFACTOR_DEFAULT=1 USE_LTO=0 OPT_LEVEL=1"
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[[ $ROUTE -eq 1 ]] && echo "[build] EXTRA_CFLAGS+=-DHAKMEM_ROUTE=1"
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[[ $FRONTGATE -eq 1 ]] && echo "[build] EXTRA_CFLAGS+=-DHAKMEM_TINY_FRONT_GATE_BOX=1"
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make NEW_3LAYER_DEFAULT=1 BOX_REFACTOR_DEFAULT=1 USE_LTO=0 OPT_LEVEL=1 \
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EXTRA_CFLAGS+="${XCF[*]}" larson_hakmem
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echo ""
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echo "✓ Built ./larson_hakmem (dev config)"
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echo "Quick run (tput mode):"
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echo " HAKMEM_QUIET=1 HAKMEM_TINY_SUKESUKE=0 HAKMEM_TINY_TRACE_RING=0 \\"
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echo " HAKMEM_TINY_FREE_TO_SS=0 HAKMEM_TINY_MUST_ADOPT=0 HAKMEM_TINY_REG_SCAN_MAX=64 \\"
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echo " ./larson_hakmem 10 8 128 1024 1 12345 4"
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echo ""
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echo "Quick run (pf/sys mode):"
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echo " HAKMEM_QUIET=1 HAKMEM_TINY_SUKESUKE=0 HAKMEM_TINY_TRACE_RING=0 \\"
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echo " HAKMEM_TINY_FREE_TO_SS=1 HAKMEM_TINY_MUST_ADOPT=1 HAKMEM_TINY_SS_ADOPT_COOLDOWN=64 HAKMEM_TINY_REG_SCAN_MAX=32 \\"
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echo " ./larson_hakmem 10 8 128 1024 1 12345 4"
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