bug#26980: 25.2; Freeze & redisplay_internal & macOS

[Eli Zaretskii]

> From: Robert Vojta <rvojta@me.com>
> Date: Tue, 30 May 2017 10:02:55 +0200
> Cc: alan@idiocy.org, 26980@debbugs.gnu.org
> 
> > Can you see if those instances with descent of 5 are because the
> > character is displayed using a different font, by any chance?
> 
> This character is displayed via another font for sure. I tested this in 
> different apps to check it.

Not sure I understand you: I meant perhaps the display where the
descent is 4 uses one font, while the display where the descent is 5
uses a different font.

> > Could you please show a screenshot of a window with the mode line
> > formatted as it should when Emacs freezes?
> 
> It freezes randomly in different modes (Python, Clojure, shell, diff, magit, 
> …). Check screenshot how it looks like in almost all of them.

Thanks.  I see that characters in the area you highlighted overlap
each other, which might already be a sing of some display problem.