.loadby sos clr - specified module could not be found

Question

I am trying to get to the bottom of what the CLR exception that is in my dump file but I am having an issue trying to execute:

0:000> .loadby sos clr
The call to LoadLibrary(C:\ProgramData\dbg\sym\clr.dll\5348A1EF9a0000\sos) failed, Win32 error 0n126
    "The specified module could not be found."

I tried to look at what is loaded and I see:

0:000> lm
start             end                 module name
00000000`00190000 00000000`001a4000   MyTest   (deferred)             
00000000`77a00000 00000000`77afa000   user32     (deferred)             
00000000`77b00000 00000000`77c1f000   kernel32   (pdb symbols)          C:\ProgramData\dbg\sym\kernel32.pdb\CEE1211DAF10494CAFDDBE2C4232EAE82\kernel32.pdb
00000000`77c20000 00000000`77dca000   ntdll      (pdb symbols)          C:\ProgramData\dbg\sym\ntdll.pdb\8AAAEEE259C340FCADC53FAF9FEF22E92\ntdll.pdb
000007fe`f8950000 000007fe`f9ef1000   mscorlib_ni   (deferred)             
000007fe`f9f00000 000007fe`f9fd6000   MSVCR120_CLR0400   (deferred)             
000007fe`f9fe0000 000007fe`fa980000   clr        (pdb symbols)          C:\ProgramData\dbg\sym\clr.pdb\E3E0C76A7909454FB3C56B0C2CE5FFEB2\clr.pdb
000007fe`fa980000 000007fe`faa1d000   mscoreei T (pdb symbols)          C:\ProgramData\dbg\sym\mscoreei.pdb\6D65F80ABA3D403D8F6F7214972B9BBF2\mscoreei.pdb
000007fe`faa20000 000007fe`faa8f000   mscoree    (deferred)             
000007fe`fd800000 000007fe`fd80f000   CRYPTBASE   (deferred)             
000007fe`fdbb0000 000007fe`fdc1a000   KERNELBASE   (pdb symbols)          C:\ProgramData\dbg\sym\kernelbase.pdb\D396875654E9416CBA16E51F8B0A8B1E2\kernelbase.pdb
000007fe`fdd60000 000007fe`fde69000   msctf      (deferred)             
000007fe`fde70000 000007fe`fe073000   ole32      (deferred)             
000007fe`fe0b0000 000007fe`fe121000   shlwapi    (deferred)             
000007fe`fe310000 000007fe`fe3da000   usp10      (deferred)             
000007fe`fe3e0000 000007fe`fe47f000   msvcrt     (deferred)             
000007fe`fe480000 000007fe`fe48e000   lpk        (deferred)             
000007fe`fe590000 000007fe`fe5af000   sechost    (deferred)             
000007fe`fe600000 000007fe`fe62e000   imm32      (deferred)             
000007fe`fe630000 000007fe`fe697000   gdi32      (deferred)             
000007fe`fe910000 000007fe`fe9eb000   advapi32   (deferred)             
000007fe`ff800000 000007fe`ff92d000   rpcrt4     (deferred)

Looking more at the clr:

0:000> lmvm clr
Browse full module list
start             end                 module name
000007fe`f9fe0000 000007fe`fa980000   clr        (pdb symbols)          C:\ProgramData\dbg\sym\clr.pdb\E3E0C76A7909454FB3C56B0C2CE5FFEB2\clr.pdb
    Loaded symbol image file: clr.dll
    Mapped memory image file: C:\ProgramData\dbg\sym\clr.dll\5348A1EF9a0000\clr.dll
    Image path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
    Image name: clr.dll
    Browse all global symbols  functions  data
    Timestamp:        Fri Apr 11 22:16:15 2014 (5348A1EF)
    CheckSum:         009A762B
    ImageSize:        009A0000
    File version:     4.0.30319.34209
    Product version:  4.0.30319.34209
    File flags:       8 (Mask 3F) Private
    File OS:          4 Unknown Win32
    File type:        2.0 Dll
    File date:        00000000.00000000
    Translations:     0409.04b0
    CompanyName:      Microsoft Corporation
    ProductName:      Microsoft® .NET Framework
    InternalName:     clr.dll
    OriginalFilename: clr.dll
    ProductVersion:   4.0.30319.34209
    FileVersion:      4.0.30319.34209 built by: FX452RTMGDR
    PrivateBuild:     DDBLD104
    FileDescription:  Microsoft .NET Runtime Common Language Runtime - WorkStation
    LegalCopyright:   © Microsoft Corporation.  All rights reserved.
    Comments:         Flavor=Retail

And then as per suggestion from @Thomas Weller:

0:000> lmf m clr
Browse full module list
start             end                 module name
000007fe`f9fe0000 000007fe`fa980000   clr      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll

The path (C:\Windows\Microsoft.NET\Framework64\v4.0.30319) exists on my PC and there's a SOS.dll inside.

Additional information:

• ld clr; .reload /f does not help
• I've not used .cordll to modify the CLR loading paths
• .load C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SOS.dll works, but it's longer to type

Why is .loadby sos clr not working for me? (I just installed WinDbg from https://developer.microsoft.com/en-us/windows/hardware/windows-driver-kit) by selecting to install "Debugging Tools for Windows" from the installer)

Answer 1

As mentioned by @Thomas Weller this workaround works for now:

.load C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SOS.dll