Actually you could stop to point 4, which is the bad segmentation fault. It seem you never reach SDL_VideoInit which must be called before your segmentation fault !!!
3a/ break SDL_video.c:1112
3b/ break SDL_VideoInit
4/ print _this <= must be 0. The program must stop in the breakpoint 3a.
5/ step twice. Normally you must enter SDL_VideoInit. Either you do not enter the if code or the function call go in an unkwnon place ! Check where you are (bt, list ).

For onepad, ask mandriva to get the patch in their rpm. Very good for others. Temporary workaround of the missing scrolling there is a combination to move easily windows (try alt-left click / or middle or left depend of the desktop enviroment )