go runtime_error ai_generated true

panic: runtime error: invalid memory address or nil pointer dereference [recovered]

ID: go/nil-pointer-in-goroutine

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2024-04-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.0 active — — —
1.21 active — — —

Root Cause

A goroutine attempts to access a nil pointer, often due to uninitialized variables or incorrect error handling.

generic

中文

goroutine尝试访问空指针，通常由于未初始化的变量或错误的错误处理导致。

Workarounds

  1. 90% success 
    Initialize all pointers properly before use. Use the zero value or allocate memory with new().
  2. 85% success 
    Use error returns to propagate nil pointers, and check errors before dereferencing.

Dead Ends

Common approaches that don't work:

  1. 60% fail

    This is tedious and may miss some cases; it does not address the root cause of why the pointer is nil.

  2. 70% fail

    Recovering does not fix the underlying issue; it may mask bugs and lead to inconsistent state.

  3. 90% fail

    It can cause data corruption or crashes in production; ignoring is not safe.