GNU bug report logs - #14970
Assertion failure deleting frames

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Package: emacs;

Reported by: Juanma Barranquero <lekktu <at> gmail.com>

Date: Sun, 28 Jul 2013 00:24:02 UTC

Severity: normal

Found in version 24.3.50

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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Message #13 received at 14970 <at> debbugs.gnu.org (full text, mbox):

From: martin rudalics <rudalics <at> gmx.at>
To: Juanma Barranquero <lekktu <at> gmail.com>
Cc: 14970 <at> debbugs.gnu.org
Subject: Re: bug#14970: crash deleting frames
Date: Sun, 28 Jul 2013 10:39:54 +0200

> 3216              w = XWINDOW (FRAME_SELECTED_WINDOW (f));

My crystal ball tells me that Eli will check whether f is a live frame
in between the following two statements of w32fns.c

	  f = x_window_to_frame (dpyinfo, hwnd);
	  w = XWINDOW (FRAME_SELECTED_WINDOW (f));

which should considerably reduce the danger that the frame has been
recycled when accessing FRAME_SELECTED_WINDOW.  I'm not sure whether
it's worth the effort having FRAME_SELECTED_WINDOW check that its
argument is a live frame.

martin
This bug report was last modified 11 years and 360 days ago.

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