From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Welsh Duggan Newsgroups: gmane.emacs.bugs Subject: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs Date: Mon, 29 Mar 2021 15:12:50 -0400 Message-ID: References: <87im5ofp3z.fsf@md5i.com> <83czvvdw7o.fsf@gnu.org> <14e14f28-7ece-cd98-5e49-d4583a0153a0@gmx.at> <16b279ef-a1c2-cd41-b18c-69383174c72a@gmx.at> <87a6qs7z60.fsf@md5i.com> <83eeg3kawg.fsf@gnu.org> <83y2e6kp9t.fsf@gnu.org> <83tuouknpb.fsf@gnu.org> <83sg4eknh5.fsf@gnu.org> <83r1jykmt0.fsf@gnu.org> <2d0dbdc8-3678-cd21-234a-9c63bb004629@gmx.at> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29128"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: "mwd@md5i.com" , "schwab@linux-m68k.org" , "47244@debbugs.gnu.org" <47244@debbugs.gnu.org> To: martin rudalics Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 29 21:14:16 2021 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 1lQxL1-0007JV-83 for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 29 Mar 2021 21:14:14 +0200 Original-Received: from localhost ([::1]:38536 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQxL0-0002cP-8l for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 29 Mar 2021 15:14:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37738) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQxKs-0002cF-U7 for bug-gnu-emacs@gnu.org; Mon, 29 Mar 2021 15:14:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:38091) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lQxKs-0001Cy-Mg for bug-gnu-emacs@gnu.org; Mon, 29 Mar 2021 15:14:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lQxKs-0003Ke-EJ for bug-gnu-emacs@gnu.org; Mon, 29 Mar 2021 15:14:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Michael Welsh Duggan Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 29 Mar 2021 19:14:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47244 X-GNU-PR-Package: emacs Original-Received: via spool by 47244-submit@debbugs.gnu.org id=B47244.161704518312732 (code B ref 47244); Mon, 29 Mar 2021 19:14:02 +0000 Original-Received: (at 47244) by debbugs.gnu.org; 29 Mar 2021 19:13:03 +0000 Original-Received: from localhost ([127.0.0.1]:49637 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lQxJu-0003JI-OZ for submit@debbugs.gnu.org; Mon, 29 Mar 2021 15:13:02 -0400 Original-Received: from taper.sei.cmu.edu ([147.72.252.16]:40058) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lQxJr-0003Ik-0h for 47244@debbugs.gnu.org; Mon, 29 Mar 2021 15:13:00 -0400 Original-Received: from korb.sei.cmu.edu (korb.sei.cmu.edu [10.64.21.30]) by taper.sei.cmu.edu (8.14.7/8.14.7) with ESMTP id 12TJCqoX007361; Mon, 29 Mar 2021 15:12:52 -0400 DKIM-Filter: OpenDKIM Filter v2.11.0 taper.sei.cmu.edu 12TJCqoX007361 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cert.org; s=yc2bmwvrj62m; t=1617045172; bh=/sJipBeWnCHfn6Wl8QmUFAGgfEF10XFHWBKfzZohUO0=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=GsCbYs9SvBOHwjUs5aybk2APURzHH/fJ9MrZk9Tx5Q3rI9oHzZG0IRZZ5qL0Rot8b GFk46DMwl7MsABgIlEsNJIXmtJ/aOIA6wVz5ebEw/Xvu7Hq4qZupM7lDf5NihRk85D u03iBfz7hoNAZJ4T67mm7P4dxtkB15RzeuFd89JY= Original-Received: from lx-birch.ad.sei.cmu.edu (lx-birch.ad.sei.cmu.edu [10.64.53.120]) by korb.sei.cmu.edu (8.14.7/8.14.7) with ESMTP id 12TJCoFS010575; Mon, 29 Mar 2021 15:12:50 -0400 Original-Received: from lx-birch.ad.sei.cmu.edu (localhost [127.0.0.1]) by lx-birch.ad.sei.cmu.edu (8.14.7/8.14.7) with ESMTP id 12TJCogF008336; Mon, 29 Mar 2021 15:12:50 -0400 Original-Received: (from mwd@localhost) by lx-birch.ad.sei.cmu.edu (8.14.7/8.14.7) id 12TJCodF008333; Mon, 29 Mar 2021 15:12:50 -0400 X-Authentication-Warning: lx-birch.ad.sei.cmu.edu: mwd set sender to mwd@cert.org using -f In-Reply-To: (martin rudalics's message of "Mon, 29 Mar 2021 13:33:27 -0400") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:203268 Archived-At: martin rudalics writes: > > I had removed it, sorry. I'll put it in for the next time. > > Don't. I completely forgot that we do replace_buffer_in_windows_safely > when that fails which even recreates *scratch* when no other buffer is > found. > > > I think so. Both the *Server* window and the *Group* window will, under > > normal circumstances, be the only window on the frame. > > > >> p XWINDOW (selected_window)->parent > >> p XWINDOW (selected_window)->prev > >> p XWINDOW (selected_window)->next > >> p XWINDOW (selected_window)->top_line > >> p XWINDOW (selected_window)->pixel_height > >> > >> print? > > > > (gdb) p XWINDOW (selected_window)->parent > > $15 = XIL(0) > > (gdb) p XWINDOW (selected_window)->prev > > $16 = XIL(0) > > (gdb) p XWINDOW (selected_window)->next > > $17 = XIL(0x555556e96635) > > (gdb) p XWINDOW (selected_window)->top_line > > $18 = 0 > > (gdb) p XWINDOW (selected_window)->pixel_height > > $19 = 995 > > These confirm what you say above. Maybe we get that dead buffer via > `set-window-configuration'? Could > > else if (!NILP (w->start)) > /* Leaf window has no live buffer, get one. */ > > have failed? Can a "live window" have w->start equal nil? I sincerely hope that question is more addressed to Eli than to me, as I have no idea. I'm more than happy to run with different breakpoints and/or debugging code inserted. -- Michael Welsh Duggan (mwd@cert.org)