由于某些原因，一旦加载psscor4，我将无法运行任何命令。我已经从MS网站下载了psscor4的x64，并将其放在windbg所在的文件夹中。在加载psscor4之前，我可以正常运行sos命令，而不会出现任何问题。
0:003> .loadby sos clr
0:003> lmvm clr
start end module name
00007ffa`35630000 00007ffa`35fc8000 clr (deferred)
Image path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
Image name: clr.dll
Timestamp: Wed Nov 27 19:25:30 2013 (52968D7A)
CheckSum: 00996ED8
ImageSize: 00998000
File version: 4.0.30319.34011
Product version: 4.0.30319.34011
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: 4.0.30319.34011
FileVersion: 4.0.30319.34011 built by: FX45W81RTMGDR
PrivateBuild: DDBLD109
FileDescription: Microsoft .NET Runtime Common Language Runtime - WorkStation
LegalCopyright: © Microsoft Corporation. All rights reserved.
Comments: Flavor=Retail
0:003> !DumpHeap -type ConsoleApplication1.Dummy
Address MT Size
0000000002022f58 00007ff9d5ec4130 40
Statistics:
MT Count TotalSize Class Name
00007ff9d5ec4130 1 40 ConsoleApplication1.Dummy
Total 1 objects
0:003> !DumpHeap -mt 00007ff9d5ec4130
Address MT Size
0000000002022f58 00007ff9d5ec4130 40
Statistics:
MT Count TotalSize Class Name
00007ff9d5ec4130 1 40 ConsoleApplication1.Dummy
Total 1 objects
0:003> !do 0000000002022f58
Name: ConsoleApplication1.Dummy
MethodTable: 00007ff9d5ec4130
EEClass: 00007ff9d5fd23b8
Size: 40(0x28) bytes
File: c:\Projects\ConsoleApplication1\ConsoleApplication1\bin\Debug\ConsoleApplication1.exe
Fields:
MT Field Offset Type VT Attr Value Name
00007ffa34635740 4000001 8 System.Byte[] 0 instance 0000000012029740 bytes
00007ffa34632838 4000002 18 System.Int32 1 instance 0 <ID>k__BackingField
00007ffa3464d5b8 4000003 10 System.Double 1 instance 0.000000 <SomeThing>k__BackingField
加载psscor4后，我将无法运行任何sos命令
0:003> .load psscor4
0:003> !DumpHeap -type ConsoleApplication1.Dummy
The garbage collector data structures are not in a valid state for traversal.
It is either in the "plan phase," where objects are being moved around, or
we are at the initialization or shutdown of the gc heap. Commands related to
displaying, finding or traversing objects as well as gc heap segments may not
work properly. !dumpheap and !verifyheap may incorrectly complain of heap
consistency errors.
Error requesting GC Heap data
Unable to build snapshot of the garbage collector state
0:003> !DumpHeap -mt 00007ff9d5ec4130
The garbage collector data structures are not in a valid state for traversal.
It is either in the "plan phase," where objects are being moved around, or
we are at the initialization or shutdown of the gc heap. Commands related to
displaying, finding or traversing objects as well as gc heap segments may not
work properly. !dumpheap and !verifyheap may incorrectly complain of heap
consistency errors.
Error requesting GC Heap data
Unable to build snapshot of the garbage collector state
0:003> !do 0000000002022f58
<Note: this object has an invalid CLASS field>
Invalid object
我可以在前缀sos之后运行这些命令。所以!sos.do可以正常工作。但是问题是我也不能运行任何特定于psscor4的命令。知道有什么问题吗？我认为psscor4输出的错误具有误导性，因为当我将windbg附加到此过程时，我认为没有发生任何GC。
编辑
以下是用于.NET 4.0的配置。那么，其中哪一个可以与psscor4一起使用？
最佳答案
PSSCOR4
您有.NET 4.0.30319.34011，实际上是.NET 4.5。 PSSCOR4的发布日期为2011-02-01，尚不适用于.NET 4.5。它仅适用于.NET 4.0，因此对您的情况而言毫无用处。
由于.NET 4.5是.NET 4的就地更新，因此将目标框架设置为4.0并没有帮助。它取决于运行应用程序的PC上实际安装的.NET版本。
多个扩展
某些扩展名可能与其他扩展名具有相同的命令。您可以通过以下方式找到PSSCOR 4的可用命令:
0:000> .extmatch /e *psscor4* *
从列表中可以看到，PSSCOR4是SOS的超集，具有SOS的所有命令以及更多命令。
命名冲突可以通过两种方式解决:
.setdll <dllname>定义默认的DLL !<extension>.<command>明确显示执行
!sos.do，选择了方法2。关于c# - 为什么psscor4命令将无法运行，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/25980945/