# 恐慌：同步：对未锁定的RWMutex执行RUnlock

- **ID:** `go/rwmutex-read-lock-recursive`
- **领域:** go
- **类别:** runtime_error
- **验证级别:** ai_generated
- **修复率:** 80%

## 根因

在没有相应RLock的情况下调用RUnlock，通常是由于递归读锁定。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| 1.19 | active | — | — |

## 解决方案

1. **** (99% 成功率)
   ```
   mu.RLock(); defer mu.RUnlock()
   ```
2. **** (95% 成功率)
   ```
   Restructure code to hold lock only once per goroutine.
   ```

## 无效尝试

- **** — RLock is not reentrant; multiple RLock without unlock causes deadlock or panic. (85% 失败率)
- **** — Attempting to upgrade read lock to write lock causes deadlock. (90% 失败率)