go runtime_error ai_generated true

fatal error: runtime: goroutine stack exceeds 1000000000-byte limit

ID: go/goroutine-goroutine-leak

Also available as: JSON · Markdown · 中文
80%Fix Rate
84%Confidence
0Evidence
2025-04-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.21 active — — —
1.22 active — — —

Root Cause

Goroutines are leaked because they are blocked forever on channels or locks, causing stack memory to grow unboundedly.

generic

中文

协程因在通道或锁上永久阻塞而泄漏，导致栈内存无限制增长。

Workarounds

  1. 95% success Use context with timeout to unblock goroutines 
    ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
select {
case <-ch:
case <-ctx.Done():
    // timeout, handle cleanup
}
  2. 98% success Ensure every goroutine has a clear exit path 
    done := make(chan struct{})
go func() {
    defer close(done)
    // work
}()
<-done

Dead Ends

Common approaches that don't work:

  1. Increasing stack limit 95% fail

    Does not fix the leak; only delays the crash.

  2. Using time.Sleep to periodically check 90% fail

    Sleep does not unblock goroutines; they remain blocked.