Booting today's rawhide tree, I hit a kernel panic when anaconda starts to format the filesystems. Three pages of kernel badness scroll before it stops on the one I'm attaching to this report.
Created attachment 146016 [details] spinlock lockup on CPU#1, mke2fs/947, c06cd14c (Not tainted)
The system I'm using a Merom Core 2 Duo laptop-in-a-box from Intel.
And some more info... I disabled the dual core aspect of this Core 2 Duo system and the installation worked fine. There were some stack backtrace messages, but no kernel panic.
Closing this as rawhide because it's all working fine now.