bug#23935: 25.1.50; simple reproducible crash for emacs -Q: `M-: (+ 1997 120 400)'

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sun, 10 Jul 2016 09:45:19 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: 23935@debbugs.gnu.org
> 
> > > 1. emacs -Q
> > > 2. M-: (+ 1997 120 400)
> > > Emacs crashes systematically.
> > 
> > It doesn't crash here.  Maybe you have some font installed that
> > triggers this crash.  Can someone else reproduce this?
> 
> It's also possible that this was fixed.  The build is a bit old
> (it's all I have).

I have now tried binaries from around the date your build was made,
and they don't crash here.  The system where I tried doesn't have a
font that supports the characters whose codepoint is the result of the
evaluation, u+09D5.

That character belongs to the Bengali block.  Can you see which
font(s) you have installed that support that block?  Also, does Emacs
display the Bengali greeting in etc/HELLO?  If it does, you can use
"C-u C-x =" on that part of HELLO to show the font Emacs uses.