Vim is not responding on writing file

[6qyzak]

Vim (also GVim) starts up as normal but on writing files, Vim becomes not responding and gradually eat up RAM up to 100% (And OS start not to respond so I have to reboot my device by force).
I configured Vim (and gvim) compiling with this line:
./configure --with-features=huge --enable-gui=gtk2 --enable-python3interp=yes --with-python3-config-dir=/usr/lib/python3.5/config-3.5m-x86_64-linux-gnu
I'm Using Vim release 8.0 on Ubuntu 16.04 64bit.
Also I've checked whether it's easytags' problem by starting vim both with loading easytags and not loading it to make sure, and I guess it's easytags' problem.

[sqwishy]

This might not be the same issue, since I don't see the memory usage thing. But if I make a file containing only x clock; and save it or run :UpdateTags vim will hang and do nothing.