go runtime_error ai_generated true

致命错误：sync：解锁未加读锁的 RWMutex

fatal error: sync: RUnlock of unlocked RWMutex

ID: go/rwmutex-unlock-of-unlocked

其他格式: JSON · Markdown 中文 · English
80%修复率
86%置信度
0证据数
2024-10-05首次发现

版本兼容性

版本状态引入弃用备注
1.18 active — — —
1.21 active — — —
1.22 active — — —

根因分析

在没有对应 RLock() 的情况下调用 RUnlock()，常见于用 Lock() 加锁却用 RUnlock() 解锁的情况。

English

RUnlock() is called without a matching RLock(), often because the lock was acquired with Lock() but released with RUnlock().

generic

解决方案

  1. 94% 成功率 
    mu.RLock()
defer mu.RUnlock()
// read-only section
  2. 85% 成功率 
    type RLocked struct{ mu *sync.RWMutex }
func (r RLocked) Unlock() { r.mu.RUnlock() }

无效尝试

常见但无效的做法:

  1. 80% 失败

    Hides the panic but leaves the RWMutex in a corrupted state, causing deadlocks later.

  2. 55% 失败

    It removes read concurrency and may mask but not fix the mismatched lock/unlock pairs.