Loading a Qt Creator minidump crash file on Windows

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For the rare cases when Qt Creator is crashing (QTCREATORBUG-29425 for example) and producing a MiniDump dmp file, you can get the stack trace of the crash by following these steps.

Debug Symbols

Make sure that you have the debug symbols (

*.pdb

files) installed from the MaintainanceTool.

Qtcreator-debug-symbols.png


Source Mapping

The debugger will have to match the source file paths used on the build machine with the local Qt Creator source checkout.

Qtcreator-source-mapping.png

The Qt Creator build machine source path is 

C:\Users\qt\work\build\qt-creator

.

Make sure that your Qt Creator source code checkout matches the Qt Creator installation.

LLVM MinGW's lldb.exe debugger

The 

cdb.exe

default debugger for Visual C++ kits is not able to quickly load and display the 

dmp

stack traces. I have found that LLDB from LLVM MinGW can load the 

dmp

stack traces.

Qtcreator-llvm-mingw-lldb.png

Use LLDB for the Visual C++ kit

Now that we have 

LLDB

we need to modify the Visual C++ Kit used to load Qt Creator's source code.

Qtcreator-msvc-kit-using-lldb.png

Loading the MiniDump core file

Then under 

Debug > Start Debugging > Load core file ...

you can load the 

dmp

file e.g. 

qtcreator.exe.3492.dmp

Qtcreator-load-minidump-dialog.png

Examining the stack trace

Now you will be able to see the stack trace that cause the crash:

Qtcreator-loaded-minidump.png

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