QT Creator gdb debugger hangs and times out most of the time when stepping (F10 - F11) on Ubuntu 13.04

When debugging with steps (F10 or F11), the debugger of "QT Creator 2.8.0-beta" hangs most of the times. Usually QtCreator then pops up a message informing gdb is not responding and has timed out. At this stage top shows gdb running at 100% of a cpu core. If I abort debugging or quit QtCreator, some times QtCreator itself gets hanged and also takes 100% cpu. Often the process needs to be killed.

Debugging the same application directly from command line gdb works fine.

This is similar to QTCREATORBUG-3089 and QTCREATORBUG-9031, but observed on Ubuntu Linux.