On Fri, Feb 01, 2013 at 11:12:27AM -0500, Mike Snitzer wrote: > > Was there still a directory in /sys/fs/bcache? > > Yes, after unmount the /dev/bcacheX device is deleted but the > associated /sys/fs/bcache/<uuid> still exists. > > Echoing 1 to /sys/fs/bcache/<uuid>/stop cleared it up. Yep, that's how it's supposed to work.