Comment # 2 on bug 972067 from ill lume

$ sudo tune2fs -l /dev/sdc1 | grep "Reserved block count"
Reserved block count:     24157222

/dev/sdc1       1.8T  1.7T   56G  97% /media/data

That says 24MB reserved? From what I can tell, it is a bug in samba, as rsync
is still able to write to it.