[bug] dalvik duplicates app data wasting GB of space

If that is true, then why does my free space show up with exactly 1.5 GB less than it should (either with "df" or "btrfs fi df"), And "du" shows that it is exactly there that it is duplicated?

if you have developer mode on, open a terminal and type:

mount | grep /dev/fuse

You should get this line:

/dev/fuse on /home/nemo/android_storage type fuse (rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other)

and everything is ok.

@dsilveira not sure what you mean and why you should exactly have 1,5GB less disk usage? Of course du shows for each folder the same amount, it's the same, but does not mean it's used twice. The space used reported by tools like df and btrfs fi df are not always so intuitive to understand (at least for me). See also btrfs wiki.

If you don't believe, boot into recovery mode, mount the @home subvolume and check out nemo/android_storage you will notice it's empty, then mount @ subvolume and check out data/media there the files are:

/ # mount -o subvol=@home /dev/mmcblk0p28  /mnt
/ # cd /mnt/nemo/android_storage/
/mnt/nemo/android_storage # ls -al
drwxrwsr-x    1 0        100000           0 May  5 18:46 .
drwxr-x---    1 100000   100000         802 Oct  6 17:59 ..
/mnt/nemo/android_storage #

/ # umount /mnt
/ # mount -o subvol=@ /dev/mmcblk0p28  /mnt
/ # cd /mnt/data/media/
/mnt/data/media # ls -al
drwxrwx---    1 1023     1023           204 Aug 12 21:53 .
drwxrwx--x    1 1000     1000           470 Sep 30 17:55 ..
drwxrwxr-x    1 1023     1023            84 Aug 29 08:05 .aptoide
drwxrwxr-x    1 1023     1023             6 Jun  1 11:37 .aptoide_settings
drwxrwsr-x    1 1023     1023             8 Feb  4  2014 Android
drwxrwsr-x    1 1023     1023            88 Apr  7  2014 ApplifierVideoCache
drwxrwsr-x    1 1023     1023            14 Sep 17 19:46 CamScanner
drwxrwsr-x    1 1023     1023            22 Feb  4  2014 DCIM
drwxrwsr-x    1 1023     1023             0 Sep 17 19:45 Download
drwxrwsr-x    1 1023     1023             8 Feb 15  2014 backups
drwxrwsr-x    1 1023     1023             0 Feb 15  2014 download
drwxrwxr-x    1 1023     1023             0 Jul 13 00:06 navigator
drwxrwxr-x    1 1023     1023             0 May 14 20:18 rdtmp
/mnt/data/media #

If you open terminal and enter a btrfs fi df, or a df, or you use an app like "memory", with all of these methods I get a reported amount of free space, which is considerably less than What I expected, and after going through every big space spender recursively with du, The Only, space usage inconsistency I find is with those folders I mentioned.

So either the fuse mount distorts the df/btrfs fi df/"memory" reading, or It in fact duplicates data.

Either way, There is a considerable amount of disk-space which seems to become unusable to the user!