Some problems on 64bit system

[Rafal Malinowski]

Hello.

My name is Rafał Malinowski. I'am developer of Kadu (www.kadu.net).
I would like to use Kdevelop for my development, but unfortunatelly it 
crashes: http://bugs.kde.org/show_bug.cgi?id=183561.
I'm also experiencing some other crashesh that sems connected with 
topDuChain() being invalid.

I would like to fix it, but I need some hints where to search for the bug. 
Maybe it exists only becouse I have 64bit system?

Please provide some tips...

Rafał