GNU bug report logs - #2524
23.0.91; Frame beneath the current one not fully redisplayed on w32

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From: "Drew Adams" <drew.adams <at> oracle.com>
To: "'Eli Zaretskii'" <eliz <at> gnu.org>, <2524 <at> debbugs.gnu.org>,
        <emacs-pretest-bug <at> gnu.org>
Subject: bug#2524: 23.0.91;Frame beneath the current one not fully redisplayed on w32
Date: Sun, 1 Mar 2009 13:50:22 -0800

> Please write in English if possible, because the Emacs maintainers
> usually do not have translators to read other languages for them.
> 
> Your bug report will be posted to the 
> emacs-pretest-bug <at> gnu.org mailing list.
> 
> Please describe exactly what actions triggered the bug
> and the precise symptoms of the bug:
> 
>   emacs -Q
>   C-h n
>   C-x 5 b RET
>   C-h p
>   C-x 1
> 
> After these keystrokes you should have 2 frames: one displaying NEWS,
> the other one displaying the list of keywords for Emacs packages.
> 
> Now click and hold mouse on the foreground frame, and drag the frame
> as fast as you can in circular movements against the background of the
> second frame beneath it.  Eventually, you will see that the frame
> beneath is not fully redisplayed in the portions that are exposed when
> the foreground frame moves.  At that point, even if you stop dragging
> the foreground frame and release the mouse, the frame beneath will not
> be redisplayed.
> 
> If Emacs crashed, and you have the Emacs process in the gdb debugger,
> please include the output from the following gdb commands:
>     `bt full' and `xbacktrace'.
> If you would like to further debug the crash, please read the file
> d:/gnu/emacs/etc/DEBUG for instructions.
> 
> 
> In GNU Emacs 23.0.91.1 (i386-mingw-nt5.1.2600)
>  of 2009-02-28 on HOME-C4E4A596F7
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4)'

Sounds to me like this is bug #1748 (which has gotten no reply), and which is
also part of bug #117 (part that remains unfixed). I'm surprised that no one
else has seen (or at least reported) it before now.

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=1748

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=117

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