qemu-system-x86_64 segfaults with kernel 3.5.0

qemu-kvm 1.1.1 stable is running fine for me with RHEL 6 2.6.32 based kernel.

But with 3.5.0 kernel qemu-system-x86_64 segfaults while i'm trying to install ubuntu 12.04 server reproducable.

You find three backtraces here:
http://pastebin.com/raw.php?i=xCy2pEcP

Stefan