From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#15957: 24.3.50; Follow mode scrolling broken on Emacs trunk Date: Tue, 26 Nov 2013 15:12:45 +0100 Message-ID: <5294AC5D.3050602@gmx.at> References: <52909877.1070203@gmx.at> <5291D098.10507@gmx.at> <52937DED.9070304@gmx.at> <529440AD.6060505@yandex.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1385475257 1432 80.91.229.3 (26 Nov 2013 14:14:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 26 Nov 2013 14:14:17 +0000 (UTC) Cc: Dmitry Antipov , 15957@debbugs.gnu.org To: Anders Lindgren Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Nov 26 15:14:21 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VlJPB-0006Co-Nn for geb-bug-gnu-emacs@m.gmane.org; Tue, 26 Nov 2013 15:14:21 +0100 Original-Received: from localhost ([::1]:58925 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VlJPA-00043O-Uv for geb-bug-gnu-emacs@m.gmane.org; Tue, 26 Nov 2013 09:14:20 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:38705) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VlJP0-0003tN-S8 for bug-gnu-emacs@gnu.org; Tue, 26 Nov 2013 09:14:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VlJOs-0003F5-2Z for bug-gnu-emacs@gnu.org; Tue, 26 Nov 2013 09:14:10 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:59795) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VlJOr-0003F0-Vo for bug-gnu-emacs@gnu.org; Tue, 26 Nov 2013 09:14:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VlJOr-0005kF-Q4 for bug-gnu-emacs@gnu.org; Tue, 26 Nov 2013 09:14:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: martin rudalics Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 26 Nov 2013 14:14:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15957 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 15957-submit@debbugs.gnu.org id=B15957.138547518422004 (code B ref 15957); Tue, 26 Nov 2013 14:14:01 +0000 Original-Received: (at 15957) by debbugs.gnu.org; 26 Nov 2013 14:13:04 +0000 Original-Received: from localhost ([127.0.0.1]:45579 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VlJNw-0005ip-2c for submit@debbugs.gnu.org; Tue, 26 Nov 2013 09:13:04 -0500 Original-Received: from mout.gmx.net ([212.227.15.18]:56760) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VlJNt-0005iI-7d for 15957@debbugs.gnu.org; Tue, 26 Nov 2013 09:13:02 -0500 Original-Received: from [62.47.53.240] ([62.47.53.240]) by mail.gmx.com (mrgmx003) with ESMTPSA (Nemesis) id 0Lu874-1VbrCS3Ty2-011Qfv for <15957@debbugs.gnu.org>; Tue, 26 Nov 2013 15:12:55 +0100 In-Reply-To: X-Provags-ID: V03:K0:YpJuRAVVnt/jXL38CS4/qh5qMR0oyegu3bmo/3/IlkWYdS01lZD 00mOEQjIg9jYsXhnOieEQqF8Y11yvYEsKcTmWswsKtb4smR/52+KeW3LnugHjfvNONKl370 odzrKF543UXkjPLm4mWk/FGVXdXo3aOtCtvrSA7xpw2O6oiA5secLPHxceLtLi6j8G5UMR6 rNTqTKkOGdZQsYKvCkwHA== X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:80989 Archived-At: > The problem only occurs under certain circumstances. `window-end' must > called from a post-command hook and the command that started it must be > bound to a key (not using M-x). Also, sometimes it seems to work correctly, > sometimes not, like every second time. (Take "must" with a grain of salt, > it might be possible to trigger the bug under other circumstances as well.) From what you found out so far I suppose that these changes * window.c (window_scroll_pixel_based) (window_scroll_line_based): Do not reset last_modified and last_overlay_modified counters. are responsible. Could you try to resetting window_end_valid in window_scroll like === modified file 'src/window.c' --- src/window.c 2013-11-06 18:41:31 +0000 +++ src/window.c 2013-11-26 14:07:05 +0000 @@ -4286,6 +4286,7 @@ else window_scroll_line_based (window, n, whole, noerror); + XWINDOW (window)->window_end_valid = 0; immediate_quit = 0; } and see what happens? martin