File: //proc/fs/ext4/loop0/mb_groups
#group: free  frags first [ 2^0   2^1   2^2   2^3   2^4   2^5   2^6   2^7   2^8   2^9   2^10  2^11  2^12  2^13  ]
#0    : 15590 1     17178 [ 0     1     1     0     0     1     1     1     0     0     1     1     1     1     ]
#1    : 31997 1     771   [ 1     0     1     1     1     1     1     1     0     0     1     1     1     3     ]
#2    : 32252 2     514   [ 2     1     2     2     2     2     2     2     2     1     0     1     1     3     ]
#3    : 31997 1     771   [ 1     0     1     1     1     1     1     1     0     0     1     1     1     3     ]
#4    : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#5    : 31997 1     771   [ 1     0     1     1     1     1     1     1     0     0     1     1     1     3     ]
#6    : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#7    : 31997 1     771   [ 1     0     1     1     1     1     1     1     0     0     1     1     1     3     ]
#8    : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#9    : 31997 1     771   [ 1     0     1     1     1     1     1     1     0     0     1     1     1     3     ]
#10   : 31750 6     524   [ 4     5     4     3     3     3     3     3     3     1     1     2     2     2     ]
#11   : 23571 45    524   [ 35    22    21    18    14    14    5     2     2     0     5     2     1     1     ]
#12   : 32252 1     516   [ 0     0     1     1     1     1     1     1     1     0     1     1     1     3     ]
#13   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#14   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#15   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#16   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#17   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#18   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#19   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#20   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#21   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#22   : 32221 3     514   [ 1     2     2     2     0     2     0     1     1     0     1     1     1     3     ]
#23   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#24   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#25   : 31996 2     771   [ 2     1     0     1     1     1     1     1     0     0     1     1     1     3     ]
#26   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#27   : 31997 1     771   [ 1     0     1     1     1     1     1     1     0     0     1     1     1     3     ]
#28   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#29   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#30   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]
#31   : 32254 1     514   [ 0     1     1     1     1     1     1     1     1     0     1     1     1     3     ]