WinDbg - SOS

In this episode of Defrag Tools, Andrew Richards and Larry Larsen continue looking at the Debugging Tools for Windows (in particular WinDbg). WinDbg is a debugger that supports user mode debugging of a process, or kernel mode debugging of a computer.

This installment shows how you can view the user mode call stack and stack variables in a native, managed (.NET) or Silverlight process. We use these commands:

dv

dt

!sos.dumpstack

!sos.dumpstackobjects / !sos.dso

!sos.dumpobj / !sos.do

!sos.printexception / !sos.pe

.frame

.f+

.f-

.load

.unload

.loadby

.chain

lm / lmm / lmvm

.extmatch

.prefer_dml 1

.lines

.ecxr

.cls

Make sure you watch Defrag Tools Episode #1 for instructions on how to get the Debugging Tools for Windows and how to set the required environment variables for symbols and source code resolution.