使用WinDbg/SOS调试托管->本机调用堆栈。我收到“无法请求ThreadStore”

managed.exe中的MyManagedFunc调用unmanaged.dll中的MyUnmanagedFunc()。我使用Win32在unmanaged.dll中生成一个小型转储。SetUnhandledExceptionFilter。我可以在调用堆栈中看到MyUnmanagedFunc,但在托管端没有任何有用的内容。

我应该能够使用WinDbg和SOS.dll来查看托管调用,对吗?下面是我的WinDbg会话。我做错了什么?

Executable search path is: 
Windows XP Version 2600 (Service Pack 3) MP (4 procs) Free x86 compatible
Product: WinNt, suite: SingleUserTS
Machine Name:
Debug session time: Fri Sep 25 12:59:28.000 2009 (GMT-5)
System Uptime: not available
Process Uptime: 0 days 0:00:08.000
.......................................
This dump file has an exception of interest stored in it.
The stored exception information can be accessed via .ecxr.
(da0.1340): Integer divide-by-zero - code c0000094 (first/second chance not available)
eax=03a50000 ebx=001a2578 ecx=00000007 edx=7c90e514 esi=001a2550 edi=001a25a8
eip=7c90e514 esp=0012dd24 ebp=0012dd34 iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000246
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for ntdll.dll - 
ntdll!KiFastSystemCallRet:
7c90e514 c3              ret
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for kernel32.dll - 
0:000> .loadby sos mscorwks
0:000> !threads
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for mscorwks.dll - 
PDB symbol for mscorwks.dll not loaded
Failed to request ThreadStore
0:000> .ecxr
eax=0000000c ebx=00160c20 ecx=00000000 edx=00000000 esi=0012efb8 edi=0012eea4
eip=01201712 esp=0012edd8 ebp=0012eea4 iopl=0         nv up ei pl nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010206
*** WARNING: Unable to verify checksum for NativeDLL.dll
NativeDLL!MyBad+0x22:
01201712 f77d0c          idiv    eax,dword ptr [ebp+0Ch] ss:0023:0012eeb0=00000000
*** WARNING: Unable to verify checksum for System.Windows.Forms.ni.dll
*** ERROR: Module load completed but symbols could not be loaded for System.Windows.Forms.ni.dll