I'm trying to put a text in a ring section. I found here an example that perfectly fits my needs: How draw part of ring or broken ring in TikZ?
The problem with it is that when I change text size, e.g. by changing to
{\large this is a text}, my pdflatex hangs, the last message on the screen is:
(/usr/local/texlive/2014/texmf-dist/tex/latex/latexconfig/epstopdf-sys.cfg))