fuse-zip uses too much memory, proportional to the accessed file size

[nahuel]

I tried mounting a 600MB zip file:

cd /tmp
dd if=/dev/urandom of=file bs=600M  count=1
zip -Z store file.zip file
mount file.zip /mnt

then running:

cat /mnt/file > /dev/null 

will consume ALL the available memory (tested on a Beaglebone Black with 512MB RAM) and finally will fail with the following message:

cat: /mnt/file: Software caused connection abort

dmesg output:

[ 4993.163143] Out of memory: Kill process 3945 (fuse-zip) score 879 or sacrifice child
[ 4993.170976] Killed process 3945 (fuse-zip) total-vm:455092kB, anon-rss:451736kB, file-rss:76kB

```

[Alexander Galanin]

Duplicate of #32.

[Alexander Galanin]

Yes, this is a design limitation: all data are stored in memory until file system is unmounted.