Question

我们经常在D2007调试器中启动应用程序时遇到崩溃，暂停并继续（通过按F9）。 E.g

创建VCL应用
在主表单上删除TButton和TEdit

为Button1添加此OnClick处理程序：

procedure TForm1.Button1Click(Sender: TObject);
var
  i: Integer;
begin
  while True do
  begin
    for i := 0 to 9999 do
      Edit1.Text := IntToStr(Random(i));
    Application.ProcessMessages;
  end;
end;

保存并调试应用
按Button1
专注于IDE
点击“暂停”按钮
按F9。

我们几乎总是会遇到访问冲突。我在Windows 7 / 64bit下测试了这个，我的同事在XP / 32bit下。在我的同事的D2006中，我们无法重现此错误。

你可以重现这个吗？任何想法如何解决它？

Answer 1

我们在D2010（以及之前的D2007）中偶尔也有这个，但我无法重现这一点。（我们也使用Win7 64bit）我将尝试使用您的测试应用程序重现这一点，谢谢！现在希望能以某种方式解决这个问题......

编辑：无法在D2010中重现这一点...将尝试D2007

Edit2：但我可以在D2007中重现这一点！
我在事件日志中也遇到了一些奇怪的错误：

Debug Output:    *** A stack buffer overrun occurred in   "C:\test\Project7.exe" :   Process Project7.exe (2584)
Debug Output: This is usually the result of a memory copy to a local buffer or structure where the size is not properly calculated/checked.  Process Project7.exe (2584)
Debug Output: If this bug ends up in the shipping product, it could be a severe security hole.  Process Project7.exe (2584)
Debug Output: The stack trace should show the guilty function (the function directly above __report_gsfailure).  Process Project7.exe (2584)
Debug Output:  *** enter .exr 772B43D0 for the exception record  Process Project7.exe (2584)
Debug Output:  *** then kb to get the faulting stack   Process Project7.exe (2584)

当我使用我的堆栈查看器（http://code.google.com/p/asmprofiler/wiki/ProcessStackViewer）和当前Delphi线程的原始堆栈跟踪（给出错误？）时，我看到以下堆栈：

[772791B3]{ntdll.dll   } RtlUnhandledExceptionFilter + $12
[7725CDF4]{ntdll.dll   } Unknown function at CsrVerifyRegion + $1B0
[771D28A6]{ntdll.dll   } memcpy + $5E6
[7725CDE4]{ntdll.dll   } Unknown function at CsrVerifyRegion + $1A0
[7725CDF4]{ntdll.dll   } Unknown function at CsrVerifyRegion + $1B0
[77243509]{ntdll.dll   } Unknown function at RtlUlonglongByteSwap + $16299
[771F6AC9]{ntdll.dll   } Unknown function at RtlDosSearchPath_Ustr + $ADA
[771F6ADD]{ntdll.dll   } Unknown function at RtlDosSearchPath_Ustr + $AEE
[771F6A9B]{ntdll.dll   } Unknown function at RtlDosSearchPath_Ustr + $AAC
[77220AE5]{ntdll.dll   } Unknown function at WinSqmSetIfMaxDWORD + $35
[771F6A3D]{ntdll.dll   } Unknown function at RtlDosSearchPath_Ustr + $A4E
[77220AE5]{ntdll.dll   } Unknown function at WinSqmSetIfMaxDWORD + $35
[6E931AE0]{AcLayers.DLL} Unknown function at NotifyShims + $73B6
[771C010F]{ntdll.dll   } KiUserExceptionDispatcher + $F
[6E931AE0]{AcLayers.DLL} Unknown function at NotifyShims + $73B6
[771E9960]{ntdll.dll   } Unknown function at RtlQueryEnvironmentVariable + $241
[6E8E0000]{AcLayers.DLL}  + $0
[771EA172]{ntdll.dll   } Unknown function at RtlAllocateActivationContextStack + $1CF
[6E8E1FFF]{AcLayers.DLL}  + $0
[6E8E0000]{AcLayers.DLL}  + $0
[768F4AF9]{ole32.dll   } Unknown function at ObjectStublessClient31 + $4AF6
[772B206C]{ntdll.dll   } NlsAnsiCodePage + $205C
[771EA14C]{ntdll.dll   } Unknown function at RtlAllocateActivationContextStack + $1A9
[6E8E1FFF]{AcLayers.DLL}  + $0
[77220AE5]{ntdll.dll   } Unknown function at WinSqmSetIfMaxDWORD + $35
[771E9E5C]{ntdll.dll   } Unknown function at RtlDecodePointer + $F7
[768F4B4D]{ole32.dll   } Unknown function at ObjectStublessClient31 + $4B4A
[77220AE5]{ntdll.dll   } Unknown function at WinSqmSetIfMaxDWORD + $35
[771E9E89]{ntdll.dll   } LdrInitializeThunk + $10
[771B0000]{ntdll.dll   }  + $0
[771B0000]{ntdll.dll   }  + $0
[7720EAB0]{ntdll.dll   } RtlExitUserThread + $0
[771C0190]{ntdll.dll   } RtlUserThreadStart + $0

我搜索了“AcLayers.DLL”（因为它似乎有点奇怪）我发现了一篇关于Vista兼容模式和奇怪崩溃的文章（http://www.nynaeve.net/?p=62）。 ..可能D2007与Win7不兼容？

编辑3：当我在没有兼容模式的情况下运行D2007时（？，只运行exe，而不是使用任务栏中的固定项！）我得到相同的错误频率较低，堆栈不再显示AcLayers.DLL，但是我看不出有什么问题（需要更多的调查，现在没有更多的时间）

Delphi2007：在调试器中继续暂停应用程序时崩溃

1 个答案: