GNU bug report logs - #28268
26.0.50; (MS Windows) crash on C-g after closing Git GUI

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Noam Postavsky <npostavs <at> users.sourceforge.net>
Cc: rcopley <at> gmail.com, 28268 <at> debbugs.gnu.org
Subject: bug#28268: 26.0.50; (MS Windows) crash on C-g after closing Git GUI
Date: Tue, 29 Aug 2017 20:25:52 +0300

> From: Noam Postavsky <npostavs <at> users.sourceforge.net>
> Date: Tue, 29 Aug 2017 13:14:09 -0400
> Cc: Eli Zaretskii <eliz <at> gnu.org>, 28268 <at> debbugs.gnu.org
> 
> Yes, and I see the high CPU use as well. Also, it seems that Emacs
> fails to notice when the program exits (e.g., it shows as still
> running in M-x list-processes).

It's not an "also", it's the reason _why_ Emacs spins.  I think it's a
race condition: git-gui.exe is a GUI program, so it releases the shell
and the shell exits before Emacs has a chance to set up the machinery
which watches the sub-process.

Of course, invoking a program such as git-gui asynchronously makes
very little sense anyway...

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