GNU bug report logs - #21428
24.5; Crash of emacs on OS X, installed via homebrew cask

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From: Anders Lindgren <andlind <at> gmail.com>
To: Rainer M Krug <Rainer <at> krugs.de>
Cc: martin rudalics <rudalics <at> gmx.at>, Eli Zaretskii <eliz <at> gnu.org>, 21428 <at> debbugs.gnu.org
Subject: bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask
Date: Fri, 23 Oct 2015 12:44:39 +0200

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> The frame I am using is a GUI frame - but if I remember correctly (and I
> might be wrong) the crash happened when making emacs fullscreen.
>

This is a vital clue.

If I remember correctly, when Emacs change between normal and full screen
mode, it creates a new OS X window and discards the old. It uses two
different Objective-C types EmacsWindow and EmacsFSWindow. (I'll can verify
the details at home, where I have access to the source code.)

My guess is that in this transition, some things are not fully set up when
the callback arrives.

/ Anders

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