At the point where we search for existing installations to upgrade or replace, anaconda has a traceback when dmraid is involved. Dump is attached.
Created attachment 297818 [details] anaconda dump
Seeing the same thing on x86_64 (nvidia nForce3 based dmraid) with a completely freshly created dmraid. Using anaconda 11.4.0.54
*** This bug has been marked as a duplicate of 432362 ***