system can't finish boot with systemd-28-4.fc16 and kernel-3.0-0.rc2.git0.2.fc16

[Lucas]

My laptop can't finish boot with systemd-28-4.fc16 and kernel-3.0-0.rc2.git0.2.fc16 - the boot 
process just stops at random points and CPU usage goes high.

systemd-28-3.fc16 and kernel-3.0-0.rc2.git0.2.fc16 - did not have this behavior.

The only possible way to boot is to add "selinux=0".
Especially for Daniel J Walsh, the addition of "enforcing=0" doesn't make any difference - boot stops.

Thanks.