WinDbg cannot find symbols for ntdll on MS symbol server

匿名 (未验证) 提交于 2019-12-03 03:03:02

问题:

I'm trying to debug executable notepad.exe (from Windows 10 distribution), and symbols ntdll.pdb from Microsoft symbols server are required, but debugger returns an error that they cannot find file specified:

0:000> .reload Reloading current modules ................................. SYMSRV:  BYINDEX: 0x25          http://msdl.microsoft.com/download/symbols          ntdll.pdb          BC08E2B7EBB349A18DCE18BE9AA6660E1 SYMSRV:  HTTPGET: /download/symbols/ntdll.pdb/BC08E2B7EBB349A18DCE18BE9AA6660E1/ntdll.pdb SYMSRV:  HttpQueryInfo: 404 - HTTP_STATUS_NOT_FOUND SYMSRV:  HTTPGET: /download/symbols/ntdll.pdb/BC08E2B7EBB349A18DCE18BE9AA6660E1/ntdll.pd_ SYMSRV:  HttpQueryInfo: 404 - HTTP_STATUS_NOT_FOUND SYMSRV:  HTTPGET: /download/symbols/ntdll.pdb/BC08E2B7EBB349A18DCE18BE9AA6660E1/file.ptr  SYMSRV:  HttpQueryInfo: 404 - HTTP_STATUS_NOT_FOUND SYMSRV:  C:\ProgramData\dbg\sym\ntdll.pdb\BC08E2B7EBB349A18DCE18BE9AA6660E1\ntdll.pdb - file not found SYMSRV:  http://msdl.microsoft.com/download/symbols/ntdll.pdb/BC08E2B7EBB349A18DCE18BE9AA6660E1/ntdll.pdb not found SYMSRV:  C:\ProgramData\dbg\sym\ntdll.pdb\BC08E2B7EBB349A18DCE18BE9AA6660E1\ntdll.pdb not found DBGHELP: C:\WINDOWS\SYSTEM32\ntdll.pdb - file not found DBGHELP: ntdll.pdb - file not found *** ERROR: Symbol file could not be found.  Defaulted to export symbols for ntdll.dll -  DBGHELP: ntdll - export symbols  ************* Symbol Loading Error Summary ************** Module name            Error SharedUserData         No error - symbol load deferred                 Symbol loading has been deferred because this symbol is not needed                 at this time. Use reload /f to force load symbols.  ntdll                  The system cannot find the file specified : http://msdl.microsoft.com/download/symbols                 The SYMSRV client failed to find a file in the UNC store, or there                 is an invalid UNC store (an invalid path or the pingme.txt file is                 not present in the root directory), or the file is present in the                 symbol server exclusion list. 

Is it possible that MS server does not contain required symbols?

It is: version 10.0.14393.447 (rs1_release_inmarket.161102-0100)

回答1:

The NTDLL.PDB (ntdll.pdb\BC08E2B7EBB349A18DCE18BE9AA6660E1\ntdll.pdb) is now online and I was able to get the PDB:

So try again to load the symbols.



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