I just pulled from the git mirror at theshell.com and built world, and also kernel -- but using the old-style method of running 'config' from /usr/src/sys/config and then compiling in the sys/compile directory.
The building went fine, but the 'install' target put the kernel modules in / instead of /boot/modules. (The old modules did, however, go in the /boot/modules.old directory.) Is the old method still supported, BTW? It's been working well for me until today's update.
