• windbg指定SOS版本,执行扩展命令报错


    调试dump文件,加载相匹配版本的sos/clr时,绝大多数都是可以正常使用的。

    然而凡事都有例外,今天在做类似工作时,遇到了错误:

    CLRDLL: Consider using ".cordll -lp <path>" command to specify .NET runtime directory.
    Failed to load data access DLL, 0x80004005

    再次指定mscordacwks.dll所在路径,问题解决。

    To debug a managed application, the debugger must load a data access component (DAC) that corresponds to the CLR that the application has loaded. However, in some cases, the application loads more than one CLR. In that case, you can use the I parameter to specify which DAC the debugger should load. Version 2 of the CLR is named Mscorwks.dll, and version 4 of the CLR is named Clr.dll. The following example shows how to specify that the debugger should load the DAC for version 2 (mscorwks).


    https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/-cordll--control-clr-debugging-

    ************* Path validation summary **************
    Response                         Time (ms)     Location
    Deferred                                       SRV*C:Symbols*http://msdl.microsoft.com/download/symbols
    Symbol search path is: SRV*C:Symbols*http://msdl.microsoft.com/download/symbols
    Executable search path is:
    Windows 7 Version 7601 (Service Pack 1) MP (8 procs) Free x64
    Product: Server, suite: TerminalServer SingleUserTS
    Machine Name:
    Debug session time: Fri Dec 29 11:43:54.000 2017 (UTC + 8:00)
    System Uptime: 7 days 17:13:43.569
    Process Uptime: 0 days 0:32:30.000
    ................................................................
    ................................................................
    ................................................................
    ................................................................
    ................................................................
    ................................................................
    ...............
    ntdll!ZwWaitForSingleObject+0xa:
    00000000`779abd7a c3              ret
    0:000> lmvm clr
    Browse full module list
    start             end                 module name
    000007fe`fa120000 000007fe`faa85000   clr        (deferred)
        Image path: C:WindowsMicrosoft.NETFramework64v4.0.30319clr.dll
        Image name: clr.dll
        Browse all global symbols  functions  data
        Timestamp:        Wed Mar 30 16:43:27 2011 (4D92ED2F)
        CheckSum:         00966902
        ImageSize:        00965000
        File version: 4.0.30319.233
        Product version:  4.0.30319.233
        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:   4.0.30319.233
        FileVersion:      4.0.30319.233 (RTMGDR.030319-2300)
        PrivateBuild:     DDBLD457
        FileDescription:  Microsoft .NET Runtime Common Language Runtime - WorkStation
        LegalCopyright:   © Microsoft Corporation.  All rights reserved.
        Comments:         Flavor=Retail
    0:000> .load D:dumpsdotNet_dlls00__233x64sos.dll
    0:000> !tp
    CLRDLL: Consider using ".cordll -lp <path>" command to specify .NET runtime directory.
    Failed to load data access DLL, 0x80004005
    Verify that 1) you have a recent build of the debugger (6.2.14 or newer)
                2) the file mscordacwks.dll that matches your version of clr.dll is
                    in the version directory
                3) or, if you are debugging a dump file, verify that the file
                    mscordacwks_<arch>_<arch>_<version>.dll is on your symbol path.
                4) you are debugging on the same architecture as the dump file.
                    For example, an IA64 dump file must be debugged on an IA64
                    machine.
    
    You can also run the debugger command .cordll to control the debugger's
    load of mscordacwks.dll.  .cordll -ve -u -l will do a verbose reload.
    If that succeeds, the SOS command should work on retry.
    
    If you are debugging a minidump, you need to make sure that your executable
    path is pointing to clr.dll as well.
    0:000> .cordll -ve -u -l
    CLRDLL: C:WindowsMicrosoft.NETFramework64v4.0.30319mscordacwks.dll:4.7.2115.00 f:8
    doesn't match desired version 4.0.30319.233 f:8
    CLRDLL: Unable to find mscordacwks_AMD64_AMD64_4.0.30319.233.dll by mscorwks search
    CLRDLL: Unable to find 'mscordacwks_AMD64_AMD64_4.0.30319.233.dll' on the path
    CLRDLL: Unable to find clr.dll by search
    Cannot Automatically load SOS
    CLRDLL: ERROR: Unable to load DLL mscordacwks_AMD64_AMD64_4.0.30319.233.dll, Win32 error 0n2
    CLRDLL: Consider using ".cordll -lp <path>" command to specify .NET runtime directory.
    CLR DLL status: ERROR: Unable to load DLL mscordacwks_AMD64_AMD64_4.0.30319.233.dll, Win32 error 0n2
    0:000> .cordll -lp D:dumpsdotNet_dlls0__233x64
    CLRDLL: Loaded DLL D:dumpsdotNet_dlls0__233x64mscordacwks.dll
    Automatically loaded SOS Extension
    CLR DLL status: Loaded DLL D:dumpsdotNet_dlls0__233x64mscordacwks.dll
    0:000> !tp
    CPU utilization: 83%
    Worker Thread: Total: 16 Running: 13 Idle: 0 MaxLimit: 800 MinLimit: 8
    Work Request in Queue: 8
        Unknown Function: 000007fefad52da0  Context: 000000000c2544b0
        Unknown Function: 000007fefad52da0  Context: 000000000c2690e0
        AsyncTimerCallbackCompletion TimerInfo@0000000007f14740
        Unknown Function: 000007fefad52da0  Context: 000000000c257ea0
        Unknown Function: 000007fefad52da0  Context: 000000000c257f00
        Unknown Function: 000007fefad52da0  Context: 000000000c257e40
        Unknown Function: 000007fefad52da0  Context: 000000000c268ea0
        Unknown Function: 000007fefad52da0  Context: 000000000c257fc0
    --------------------------------------
    Number of Timers: 56
    --------------------------------------
    Completion Port Thread:Total: 3 Free: 3 MaxFree: 16 CurrentLimit: 3 MaxLimit: 800 MinLimit: 8
    
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  • 原文地址:https://www.cnblogs.com/zhaoguan_wang/p/8166440.html
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