go runtime_error ai_generated true

WARNING: DATA RACE Write at 0x00c0000... by goroutine N:

ID: go/data-race-detected

Also available as: JSON · Markdown · 中文
80%Fix Rate
90%Confidence
0Evidence
2024-02-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.1+ active — — —

Root Cause

Two goroutines access the same memory location concurrently, at least one is a write, and there is no synchronization; detected when running with -race.

generic

中文

两个 goroutine 并发访问同一内存位置，其中至少一个是写操作，且没有同步；在使用 -race 运行时被检测到。

Workarounds

  1. 93% success 
    Protect the shared variable with sync/atomic:
atomic.AddInt64(&counter, 1)
v := atomic.LoadInt64(&counter)
  2. 95% success 
    Guard the critical section with a sync.Mutex and keep the section minimal.

Dead Ends

Common approaches that don't work:

  1. 90% fail

    Hides the symptom; the race still corrupts data in production and can cause random crashes.

  2. 80% fail

    Atomic on only one side does not establish a happens-before relationship; the race persists.