From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#25792: 26.0.50; Scroll-margin working incorrectly when scrolling down if show-trailing-whitespace is t Date: Sun, 19 Feb 2017 19:20:40 +0200 Message-ID: <83h93qp05z.fsf@gnu.org> References: <93bc26e9-7026-65da-0738-57854568c106@web.de> <8760k6jevp.fsf@users.sourceforge.net> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1487524881 10063 195.159.176.226 (19 Feb 2017 17:21:21 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 19 Feb 2017 17:21:21 +0000 (UTC) Cc: alexanderm@web.de, 25792@debbugs.gnu.org To: npostavs@users.sourceforge.net Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Feb 19 18:21:17 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cfVAf-00022M-PF for geb-bug-gnu-emacs@m.gmane.org; Sun, 19 Feb 2017 18:21:13 +0100 Original-Received: from localhost ([::1]:34561 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cfVAl-0005nY-Cp for geb-bug-gnu-emacs@m.gmane.org; Sun, 19 Feb 2017 12:21:19 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37583) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cfVAa-0005ks-26 for bug-gnu-emacs@gnu.org; Sun, 19 Feb 2017 12:21:09 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cfVAU-00046i-TZ for bug-gnu-emacs@gnu.org; Sun, 19 Feb 2017 12:21:07 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:48225) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cfVAU-00046X-QE for bug-gnu-emacs@gnu.org; Sun, 19 Feb 2017 12:21:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cfVAU-0001Qw-KM for bug-gnu-emacs@gnu.org; Sun, 19 Feb 2017 12:21:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 19 Feb 2017 17:21:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 25792 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: confirmed Original-Received: via spool by 25792-submit@debbugs.gnu.org id=B25792.14875248205437 (code B ref 25792); Sun, 19 Feb 2017 17:21:02 +0000 Original-Received: (at 25792) by debbugs.gnu.org; 19 Feb 2017 17:20:20 +0000 Original-Received: from localhost ([127.0.0.1]:46424 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cfV9n-0001Pd-Sl for submit@debbugs.gnu.org; Sun, 19 Feb 2017 12:20:20 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:46431) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cfV9l-0001PJ-Lu for 25792@debbugs.gnu.org; Sun, 19 Feb 2017 12:20:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cfV9b-0003TF-HB for 25792@debbugs.gnu.org; Sun, 19 Feb 2017 12:20:12 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:34404) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cfV9b-0003T4-Eo; Sun, 19 Feb 2017 12:20:07 -0500 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4145 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cfV9a-0007Fq-L5; Sun, 19 Feb 2017 12:20:07 -0500 In-reply-to: <8760k6jevp.fsf@users.sourceforge.net> (npostavs@users.sourceforge.net) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:129540 Archived-At: > From: npostavs@users.sourceforge.net > Date: Sun, 19 Feb 2017 11:59:22 -0500 > Cc: 25792@debbugs.gnu.org > > > Only scrolling down is affected. The issue first appeared when I > > recompiled emacs roughly 1 week ago and has persisted over multiple > > recompilations on 2 different laptops (both running Antergos & Xfce), so > > my guess is that it's an issue in the current emacs master. > > This seems to be caused by [1: b9be4c14e8], it only happens when the > window has partial lines (i.e., (zerop (cadr (cl-floor > (window-screen-lines)))) is non-nil). Not sure how > show-trailing-whitespace affects this, but it does. My guess would be that show-trailing-whitespace causes an additional redisplay cycle, due to its post-command-hook.