Gdb in Qt Creator 2.2.1 crashing while debugging

I am using Qt SDK 1.1 with Qt Creator 2.2.1 (based on Qt 4.7.4 32 bit), From revision 74d015d2a9.
Im building an app for Qt Symbian and running on Simulator.

Whenever I start debugging it shows a message as "gdb-i686-pc-mingw32.exe has stopped working" and shows a message than "gdb process is crashed". Due to this Qt Creator 2.2 is completely
unusable for debugging. It works well if I downgrade to QtCreator 2.1, which I don't want as I would like to work on the latest QtCreator.

Here is the debugger log http://pastebin.com/gbqCBXfa