这可能是一个误报内存泄漏报告吗？

时间：2014-05-12 21:16:28

标签： c++ visual-studio-2010 dll memory-leaks mfc

我正在测试我创建的dll。它反过来使用其他几个dll。当我启动测试应用程序时，我的Dll测试器应用程序报告内存泄漏，除了使用LoadLibrary加载dll之外没有做任何事情。它没有显示我的dll源代码中的确切文件。如果我没有加载dll，则没有泄漏。它是一个MFC DLL并具有App类。我从dll的app类中删除了所有内容，所以它什么也没做，但是当我加载它时我仍然会收到内存泄漏报告。我创建了另一组虚拟dll和测试应用程序，但是它没有报告任何泄漏，所以它与我的原始dll有关，也许它与其他dll有联系？

我尝试过使用_crtBreakAlloc = {allocation_#};技术，但它也没有停止调试器。如果这个内存泄漏是真的，我很遗憾。我从documentation看到它可以报告误报。这可能是误报，因为我的dll与其他一些dll有关吗？我无法想到任何其他因为我已经注释掉了dll的所有功能。

这是内存泄漏错误

Detected memory leaks!
Dumping objects ->
{250} client block at 0x00567E40, subtype c0, 64 bytes long.
a CDynLinkLibrary object at $00567E40, 64 bytes long
a CDynLinkLibrary object at $00567E40, 64 bytes long
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {244} normal block at 0x00567C20, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {243} normal block at 0x00567BC8, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {242} normal block at 0x00567B58, 52 bytes long.
 Data: <   x            > E4 B8 07 78 11 00 00 00 11 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {241} normal block at 0x00566C08, 40 bytes long.
 Data: <   x            > E4 B8 07 78 0B 00 00 00 0B 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {240} normal block at 0x00566BA8, 32 bytes long.
 Data: <   x            > E4 B8 07 78 07 00 00 00 07 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {239} normal block at 0x00566B50, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {238} normal block at 0x00566AE0, 46 bytes long.
 Data: <   x            > E4 B8 07 78 0E 00 00 00 0E 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {237} normal block at 0x00566A70, 48 bytes long.
 Data: <   x            > E4 B8 07 78 0F 00 00 00 0F 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {235} normal block at 0x005676B0, 42 bytes long.
 Data: <   x            > E4 B8 07 78 0C 00 00 00 0C 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {234} normal block at 0x00567658, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {233} normal block at 0x00567600, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {232} normal block at 0x00567590, 50 bytes long.
 Data: <   x            > E4 B8 07 78 10 00 00 00 10 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {231} normal block at 0x00567538, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {230} normal block at 0x005674E0, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {229} normal block at 0x00567488, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {228} normal block at 0x00567430, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {227} normal block at 0x005673D8, 24 bytes long.
 Data: <   x            > E4 B8 07 78 03 00 00 00 03 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {226} normal block at 0x00567380, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {225} normal block at 0x00567328, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {224} normal block at 0x005672C0, 40 bytes long.
 Data: <   x            > E4 B8 07 78 0B 00 00 00 0B 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {223} normal block at 0x00567268, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {222} normal block at 0x00567200, 44 bytes long.
 Data: <   x            > E4 B8 07 78 0D 00 00 00 0D 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {221} normal block at 0x00567198, 38 bytes long.
 Data: <   x            > E4 B8 07 78 0A 00 00 00 0A 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {220} normal block at 0x00567140, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {219} normal block at 0x005670E8, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {218} normal block at 0x00567080, 38 bytes long.
 Data: <   x            > E4 B8 07 78 0A 00 00 00 0A 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {217} normal block at 0x00567028, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {216} normal block at 0x00566FD0, 24 bytes long.
 Data: <   x            > E4 B8 07 78 03 00 00 00 03 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {215} normal block at 0x00566F78, 24 bytes long.
 Data: <   x            > E4 B8 07 78 03 00 00 00 03 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {214} normal block at 0x00566F18, 36 bytes long.
 Data: <   x            > E4 B8 07 78 09 00 00 00 09 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {213} normal block at 0x00566EC0, 24 bytes long.
 Data: <   x            > E4 B8 07 78 03 00 00 00 03 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {212} normal block at 0x00566E68, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {211} normal block at 0x00566E10, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {210} normal block at 0x00566DB8, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {209} normal block at 0x00566D60, 24 bytes long.
 Data: <   x            > E4 B8 07 78 03 00 00 00 03 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {208} normal block at 0x00566D08, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {207} normal block at 0x00566CB0, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {206} normal block at 0x00561918, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {205} normal block at 0x005618C0, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {204} normal block at 0x00561868, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {202} normal block at 0x005669F8, 60 bytes long.
 Data: <   x            > E4 B8 07 78 15 00 00 00 15 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {201} normal block at 0x00566988, 46 bytes long.
 Data: <   x            > E4 B8 07 78 0E 00 00 00 0E 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {200} normal block at 0x00566920, 42 bytes long.
 Data: <   x            > E4 B8 07 78 0C 00 00 00 0C 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {199} normal block at 0x005668C8, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {198} normal block at 0x00566868, 32 bytes long.
 Data: <   x            > E4 B8 07 78 07 00 00 00 07 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {197} normal block at 0x00566800, 44 bytes long.
 Data: <   x            > E4 B8 07 78 0D 00 00 00 0D 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {196} normal block at 0x00566790, 50 bytes long.
 Data: <   x            > E4 B8 07 78 10 00 00 00 10 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {195} normal block at 0x00566718, 60 bytes long.
 Data: <   x            > E4 B8 07 78 15 00 00 00 15 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {194} normal block at 0x005666C0, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {193} normal block at 0x00566040, 48 bytes long.
 Data: <   x            > E4 B8 07 78 0F 00 00 00 0F 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {192} normal block at 0x00561C98, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {81} normal block at 0x00561BA0, 32 bytes long.
 Data: <   x            > E4 B8 07 78 07 00 00 00 07 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {80} normal block at 0x00561B48, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {79} normal block at 0x00561AE0, 44 bytes long.
 Data: <   x            > E4 B8 07 78 0D 00 00 00 0D 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {78} normal block at 0x00561A80, 34 bytes long.
 Data: <   x            > E4 B8 07 78 08 00 00 00 08 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {77} normal block at 0x00561A20, 30 bytes long.
 Data: <   x            > E4 B8 07 78 06 00 00 00 06 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {76} normal block at 0x005613D0, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {75} normal block at 0x005619A8, 56 bytes long.
 Data: <   x            > E4 B8 07 78 13 00 00 00 13 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {74} normal block at 0x00561378, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {72} normal block at 0x005617F8, 48 bytes long.
 Data: <   x            > E4 B8 07 78 0F 00 00 00 0F 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {71} normal block at 0x005617A0, 28 bytes long.
 Data: <   x            > E4 B8 07 78 05 00 00 00 05 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {70} normal block at 0x00561748, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {69} normal block at 0x005616D0, 54 bytes long.
 Data: <   x            > E4 B8 07 78 12 00 00 00 12 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {68} normal block at 0x00561670, 34 bytes long.
 Data: <   x            > E4 B8 07 78 08 00 00 00 08 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {67} normal block at 0x00561618, 22 bytes long.
 Data: <   x            > E4 B8 07 78 02 00 00 00 02 00 00 00 01 00 00 00 
f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\strcore.cpp(156) : {66} normal block at 0x005615B8, 36 bytes long.
 Data: <   x            > E4 B8 07 78 09 00 00 00 09 00 00 00 01 00 00 00 
Object dump complete.

还有另一种方法可以仔细检查内存泄漏是否存在？我也安装了deleaker，但它是有缺陷的程序，它保存在pdb文件上并且没有释放它......这让我更加痛苦。

1 个答案:

答案 0 :(得分：7)

根据以下MSKB文章，这可能是预期的：

Memory leaks are reported when you use multiple MFC DLLs

从链接页面引用：

  

当多个版本的MFC DLL报告时会报告这些内存泄漏   在同一个过程中加载。自MFC扩展（AFXDLL）DLL   需要与调用应用程序完全相同的MFC DLL，这个问题   只能在使用MFC常规（USRDLL）DLL或ActiveX时发生   使用MFC共享版本的控件（OCX）。

     

最常见的情况是混合ANSI（MFC4xd.DLL）和UNICODE   （MFC4xxUd.DLL）版本的MFC在同一个进程中。这也可以   混合MFC42d.DLL和MFC40d.DLL时发生。

就解决“问题”而言：

  

这些内存泄漏通知是错误的，可以忽略。以来   MFC的副本都不知道其他的副本，它不容易停止   这些虚假泄漏被报道。

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