I was doing a kickstart install with this ks -- http://davej.fedorapeople.org/nwo.ks when it got to partitioning, it blew up with a backtrace. Will attach below.
Created attachment 345508 [details] crash log from anaconda
Can you try with RC2/tomorrow's rawhide?
Judging by the program.log output, this is a dupe. *** This bug has been marked as a duplicate of bug 496440 ***