---
id: wiki-2026-0508-ide-stability-fix
title: IDE Stability Fix
category: 10_Wiki/Topics
status: verified
canonical_id: self
aliases: [IDE crash fix, VSCode stability, Cursor stability]
duplicate_of: none
source_trust_level: A
confidence_score: 0.85
verification_status: applied
tags: [ide, vscode, cursor, debugging, frontend]
raw_sources: []
last_reinforced: 2026-05-10
github_commit: pending
tech_stack:
  language: TypeScript
  framework: VSCode/Cursor
---

# IDE Stability Fix

## 매 한 줄
> **"매 IDE crash / freeze / OOM 의 root cause 는 대부분 extension memory leak, large file indexing, TS server overload"**. 매 2026 의 Electron-based IDE (VSCode, Cursor, Windsurf) — 매 동일 패턴. 매 systematic disable + heap profiling 으로 해결.

## 매 핵심

### 매 흔한 원인
- **Extension memory leak**: 매 disposable 미해제, listener 누적.
- **TS Server OOM**: 매 large monorepo (>500k LOC), `--max-old-space-size` 부족.
- **File watcher exhaust**: 매 `node_modules` watch → fs.inotify limit.
- **Renderer process freeze**: 매 large file (>10MB) 또는 minified bundle 열기.
- **GPU process crash**: 매 macOS Metal driver 충돌.

### 매 진단 도구
- `Developer: Open Process Explorer` (VSCode)
- `--inspect-extensions=9229` + Chrome DevTools
- `code --status` — running extensions + memory.
- macOS Activity Monitor — Code Helper (Renderer) 의 RAM 추적.

### 매 응용
1. Monorepo 의 TS server tuning.
2. AI extension (Copilot, Cursor) leak 진단.
3. WSL2 / Remote SSH 환경 stability.

## 💻 패턴

### TS Server memory raise
```json
// .vscode/settings.json
{
  "typescript.tsserver.maxTsServerMemory": 8192,
  "typescript.tsserver.experimental.enableProjectDiagnostics": false,
  "typescript.disableAutomaticTypeAcquisition": true
}
```

### File watcher exclude
```json
{
  "files.watcherExclude": {
    "**/node_modules/**": true,
    "**/.git/objects/**": true,
    "**/dist/**": true,
    "**/.next/**": true,
    "**/target/**": true
  },
  "search.exclude": {
    "**/node_modules": true,
    "**/dist": true
  }
}
```

### Bisect extensions
```bash
# 매 extension 중 어떤 것이 crash 원인인지 binary search
code --disable-extensions  # 매 모두 disable → 재현 X = extension 문제
# Help → Start Extension Bisect 로 자동 binary search
```

### Heap snapshot 분석
```bash
# 매 extension host heap snapshot
# Cmd+Shift+P → "Developer: Take Process Heap Snapshot"
# Chrome DevTools 에서 .heapsnapshot 열어 분석
```

### Linux file watcher limit
```bash
# inotify limit raise (default 8192 매 부족)
echo fs.inotify.max_user_watches=524288 | \
  sudo tee -a /etc/sysctl.conf
sudo sysctl -p
```

### Disable GPU acceleration (macOS crash)
```bash
# 매 Metal driver issue → software rendering
code --disable-gpu
# 또는 settings.json
"window.experimental.useSandbox": false
```

### Cursor / AI extension throttle
```json
{
  "cursor.cpp.disabledLanguages": ["plaintext", "markdown"],
  "github.copilot.editor.enableAutoCompletions": true,
  "github.copilot.advanced": { "length": 500 }
}
```

## 매 결정 기준
| 증상 | 첫 시도 |
|---|---|
| TS Server OOM | maxTsServerMemory 8GB |
| 전체 freeze | --disable-extensions bisect |
| GPU artifact | --disable-gpu |
| File watch exhaust | watcherExclude + inotify limit |
| Indexing 끝없음 | search.exclude + remove large dirs |

**기본값**: settings.json 의 watcherExclude + maxTsServerMemory 부터 시작.

## 🔗 Graph
- 부모: [[Cursor IDE]]
- 응용: [[Monorepo|Monorepo Setup]] · [[Large-scale Application Refactoring]]
- Adjacent: [[TypeScript Performance]]

## 🤖 LLM 활용
**언제**: IDE crash log 분석, settings.json tuning, extension 충돌 진단.
**언제 X**: 매 일반 app crash — 매 Electron-specific 패턴 만.

## ❌ 안티패턴
- **무작정 reinstall**: 매 cause 찾지 않음 — 매 재발.
- **Disable all extensions 영구**: 매 productivity 손실 — 매 bisect 후 specific 만 disable.
- **Ignore log**: 매 `~/Library/Logs/Cursor/` 또는 `code --status` 가 직접적 단서.

## 🧪 검증 / 중복
- Verified (VSCode docs, Cursor support forum, GitHub issue tracker patterns).
- 신뢰도 A.

## 🕓 Changelog
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | Manual cleanup — IDE crash 진단 + 7 fix patterns |