使用本机32位应用程序的迷你转储在64位Windows上崩溃的WinDbg不会为系统dll加载符号

I've got a minidump file from a crash in one of our apps. It's a 32-bit native app, and it was running on 64-bit Windows.

我有一个迷你转储文件，来自我们的一个应用程序的崩溃。它是一个32位的本地应用，运行在64位Windows上。

If I load the minidump file into WinDbg, WinDbg won't load the symbols for the system DLLs. I've got my symbol paths configured correctly:

如果我将minidump文件加载到WinDbg中，那么WinDbg将不会加载系统dll的符号。我已经正确地配置了符号路径:

_NT_SYMBOL_PATH=SRV*C:\WebSymbols*http://msdl.microsoft.com/download/symbols

...because WinDbg correctly loads symbols for minidumps created on 32-bit Windows. It just won't load symbols for DLLs in the SysWOW64 directory.

…因为WinDbg正确地装载了在32位窗口上创建的小转储的符号。它不会在SysWOW64目录中加载dll的符号。

I've tried 32-bit WinDbg (from Debugging Tools 6.9) on 32-bit Windows 2003, and 64-bit WinDbg (also from Debugging Tools 6.9) on 64-bit Windows 2008. Both fail to load the symbols. This is from the 32-bit WinDbg:

我在32位Windows 2003上尝试过32位的WinDbg(来自调试工具6.9)，在64位Windows 2008上尝试过64位的WinDbg(也来自调试工具6.9)。两者都无法加载符号。这是来自32位的WinDbg:

0:014> !sym noisy
noisy mode - symbol prompts on
0:014> .reload
....................................................................................
Loading unloaded module list
..
SYMSRV:  C:\WebSymbols\ntdll.dll\48E714D0170000\ntdll.dll not found
SYMSRV:  http://msdl.microsoft.com/download/symbols/ntdll.dll/48E714D0170000/ntdll.dll not found
DBGENG:  C:\Windows\SysWOW64\ntdll.dll - Couldn't map image from disk.
Unable to load image C:\Windows\SysWOW64\ntdll.dll, Win32 error 0n2
DBGENG:  ntdll.dll - Partial symbol image load missing image info
DBGHELP: Module is not fully loaded into memory.
DBGHELP: Searching for symbols using debugger-provided data.
SYMSRV:  C:\WebSymbols\wntdll.pdb\6686D0C5D0554E14953396093DA218A92\wntdll.pdb not found
SYMSRV:  http://msdl.microsoft.com/download/symbols/wntdll.pdb/6686D0C5D0554E14953396093DA218A92/wntdll.pdb not found
DBGHELP: wntdll.pdb - file not found
*** WARNING: Unable to verify timestamp for ntdll.dll
*** ERROR: Module load completed but symbols could not be loaded for ntdll.dll
DBGHELP: ntdll - no symbols loaded
SYMSRV:  C:\WebSymbols\kernel32.dll\48E7156Cf0000\kernel32.dll not found
SYMSRV:  http://msdl.microsoft.com/download/symbols/kernel32.dll/48E7156Cf0000/kernel32.dll not found
DBGENG:  C:\Windows\SysWOW64\kernel32.dll - Couldn't map image from disk.
Unable to load image C:\Windows\SysWOW64\kernel32.dll, Win32 error 0n2
DBGENG:  kernel32.dll - Partial symbol image load missing image info
DBGHELP: Module is not fully loaded into memory.
DBGHELP: Searching for symbols using debugger-provided data.
SYMSRV:  C:\WebSymbols\wkernel32.pdb\B0C3B36CC7EF4F3E9C168E186A5A6FEB2\wkernel32.pdb not found
SYMSRV:  http://msdl.microsoft.com/download/symbols/wkernel32.pdb/B0C3B36CC7EF4F3E9C168E186A5A6FEB2/wkernel32.pdb not found
DBGHELP: wkernel32.pdb - file not found
*** WARNING: Unable to verify timestamp for kernel32.dll
*** ERROR: Module load completed but symbols could not be loaded for kernel32.dll
DBGHELP: kernel32 - no symbols loaded
SYMSRV:  C:\WebSymbols\KERNELBASE.dll\48E7156D5a000\KERNELBASE.dll not found
SYMSRV:  http://msdl.microsoft.com/download/symbols/KERNELBASE.dll/48E7156D5a000/KERNELBASE.dll not found
DBGENG:  C:\Windows\SysWOW64\KERNELBASE.dll - Couldn't map image from disk.
DBGENG:  KERNELBASE.dll - Partial symbol image load missing image info
DBGHELP: Module is not fully loaded into memory.
DBGHELP: Searching for symbols using debugger-provided data.
SYMSRV:  C:\WebSymbols\wkernelbase.pdb\A8683F0C515F469B833E3FA562E0DB251\wkernelbase.pdb not found
SYMSRV:  http://msdl.microsoft.com/download/symbols/wkernelbase.pdb/A8683F0C515F469B833E3FA562E0DB251/wkernelbase.pdb not found
DBGHELP: wkernelbase.pdb - file not found
*** WARNING: Unable to verify timestamp for KERNELBASE.dll
*** ERROR: Module load completed but symbols could not be loaded for KERNELBASE.dll
DBGHELP: KERNELBASE - no symbols loaded

Any ideas? Are the symbols just not available on Microsoft's symbol server?

什么好主意吗?这些符号在微软的符号服务器上是不可用的吗?

2 个解决方案

#1

Are you debugging on a 32-bit or 64-bit system, and with the 32 or 64-bit version of WinDBG? You typically have to debug on the same architecture package you took the dump from:

您是否正在32位或64位系统上调试，以及使用32位或64位版本的WinDBG?通常，您必须对您从:

http://www.microsoft.com/whdc/devtools/debugging/installx86.mspx

"The 32-bit version of Debugging Tools for Windows is the best choice, unless you are debugging an application on a 64-bit processor. In that case, you should use a 64-bit package."

32位版本的Windows调试工具是最好的选择，除非您正在64位处理器上调试应用程序。在这种情况下，您应该使用64位包。

Also, take a look at this article where he is debugging a 32-bit app running on a 64-bit platform:

另外，看看本文，他正在调试一个在64位平台上运行的32位应用程序:

http://blogs.msdn.com/alejacma/archive/2008/07/18/How-to-use-Windbg-to-debug-a-dump-of-a-32bit-.NET-app-running-on-a-x64-machine.aspx

#2

-1

Consider the workaround mentionned here where syswo64\ntdll.dll is copied to Syswow64\ntdll32.dll

考虑一下这里提到的解决方案，syswo64\ntdll。dll被拷贝到Syswow64\ntdll32.dll中

https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=98781&wa=wsignin1.0

Works for me.

为我工作。

#1