.net - 常见原因 - .NET 下的访问冲突错误

Question

我正在寻找 .NET 下访问冲突错误的常见原因。

到目前为止我检查过的东西 -

在所有实现 IDisposable 的对象上调用 Dispose

检查对 COM 对象的调用中的有效参数

显式删除所有手动添加的事件处理程序

不要显式调用 GC.Collect/GC.WaitForPendingFinalizers

添加和消除处理 native 对象(位图等)时的内存压力( 添加 )

验证有效参数类型的所有 PInvoke 调用

确保正确使用 IntPtr、SafeHandle 和 HandleRef

线程(线程安全，可重入函数)，正确使用等待句柄。 ( 添加 )

确保应用程序和 DLL 都针对相同的平台(x86 或 x64)(应用程序和 dll 应该针对与 COM 对象相同的平台。)( 添加 )

还有其他建议吗？

编辑 - 将故障转储分析移至不同的问题。

Answer 1

任何不安全或非托管代码的使用都可能导致此类异常。

AccessViolationException:

An access violation occurs in unmanaged or unsafe code when the code attempts to read or write to memory that has not been allocated, or to which it does not have access. This usually occurs because a pointer has a bad value. Not all reads or writes through bad pointers lead to access violations, so an access violation usually indicates that several reads or writes have occurred through bad pointers, and that memory might be corrupted. Thus, access violations almost always indicate serious programming errors. In the .NET Framework version 2.0, an AccessViolationException clearly identifies these serious errors.

In programs consisting entirely of verifiable managed code, all references are either valid or null, and access violations are impossible. An AccessViolationException occurs only when verifiable managed code interacts with unmanaged code or with unsafe managed code.

受到推崇的:

GFlags和 Application Verifier