Today, after update from sys-apps/kmod-9 to sys-apps/kmod-9-r1 I have unusable system. I cant mount usb drive, can not use wifi. When I try mount usb flash disk, I get error from mount like unknown filesystem vfat. Also, stop working wpa_supplicant. Wpa_supplicant start, but not set essid and card not work. Downgrade to sys-apps/kmod-9 solve all problems. Please, mask sys-apps/kmod-9-r1. With best whishes - YD.
Seems that's already fixed with -r2.