I am seeing strange behaviour with nfs automounting with module-init-tools-3.13-3.fc15. I can mount an nfs file system directly, and install the module directly, but if autofs triggers the module load I seem to get in a locked situation where two or more mount commands stick while running the command /sbin/modprobe -q -- nfs and they don't finish, nor does the nfs module get loaded. I didn't see this problem with module-init-tools-3.12-5.fc15.
I am getting the same module lock-up with module-init-tools-3.16-1.fc15.x86_64 where I am also seeing /sbin/modprobe -q -- bridge hanging so it isn't just nfs
*** This bug has been marked as a duplicate of bug 714023 ***