{
  "id": "go/atomic-operation-misuse",
  "signature": "panic: runtime error: invalid memory address or nil pointer dereference (atomic load)",
  "signature_zh": "恐慌：运行时错误：无效的内存地址或空指针解引用（原子加载）",
  "regex": "panic:\\ runtime\\ error:\\ invalid\\ memory\\ address\\ or\\ nil\\ pointer\\ dereference\\ \\(atomic\\ load\\)",
  "domain": "go",
  "category": "runtime_error",
  "subcategory": null,
  "root_cause": "Using atomic operations on a nil pointer or unaligned memory, causing a panic.",
  "root_cause_type": "generic",
  "root_cause_zh": "对空指针或未对齐的内存使用原子操作，导致恐慌。",
  "versions": [
    {
      "version": "1.4",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "1.23",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Using mutex instead of atomic but not initializing pointer",
      "why_fails": "Mutex also requires valid pointer; same issue.",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    },
    {
      "action": "Ignoring alignment requirements for atomic operations on struct fields",
      "why_fails": "Atomic operations require natural alignment; panic may occur on some architectures.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Ensure pointer is initialized before atomic operations",
      "success_rate": 0.95,
      "how": "var val int64\natomic.StoreInt64(&val, 42)",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use atomic.Value for arbitrary types",
      "success_rate": 0.9,
      "how": "var v atomic.Value\nv.Store(42)\nval := v.Load().(int)",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-10-05",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}