From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#73022: 31.0.50; Crash in build_frame_matrix_from_leaf_window after C-x 2 and reducing terminal size Date: Wed, 4 Sep 2024 09:28:47 +0200 Message-ID: References: Reply-To: martin rudalics Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5771"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla Thunderbird To: Daniel Clemente , 73022@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Sep 04 09:29:07 2024 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1slkRv-0001Lj-MW for geb-bug-gnu-emacs@m.gmane-mx.org; 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Reposting. > In particular, I found a case in which an assert fails because the > window row glyph memory is not contained in the frame row glyph > memory. > > It happens in a recent build (99a03ddb2d4) built without X support. > I'm running it in a urxvt terminal but it happens in xterm too. It > crashes both with and without glyph debug. This is not related to > garbage collection like bug 71289. > > To reproduce: > 1. Open emacs -Q > 2. Press C-x 2 to split the frame (top/bottom) > 3. Make the terminal very small (I slowly resize the X window that's > running urxvt, to the minimum size, 1 row and 2 columns in my case). > This shrinking process alone can produce the crash when the window is > around 5 lines high > 4. It always crashes in my case. If it doesn't, make the terminal > larger again, and repeat the resizing for some seconds until it > crashes > > Note that the C-x 2 is required. The problem doesn't happen with a > left/right split (C-x 3). But it happens after a C-x 3 C-x 2. Kindly have a look at the fix I proposed here: https://lists.gnu.org/archive/html/emacs-devel/2024-09/msg00054.html If necessary, I can send you a patch. Thanks, martin