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#21730: 25.0.50; Random errors in redisplay--pre-redisplay-functions Date: Wed, 14 Sep 2016 22:23:35 +0300 Message-ID: <83oa3q70aw.fsf@gnu.org> References: <87io5zh7m1.fsf@md5i.com> <83vb9zt19o.fsf@gnu.org> <87y4epeyf2.fsf@md5i.com> <87mvuzfapy.fsf@md5i.com> <83ziyzxiwl.fsf@gnu.org> <834m5i8l3h.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1473881062 23851 195.159.176.226 (14 Sep 2016 19:24:22 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 14 Sep 2016 19:24:22 +0000 (UTC) Cc: 21730@debbugs.gnu.org, mwd@md5i.com To: Philipp Stephani Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 14 21:24:15 2016 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 1bkFn2-0005Jh-Qx for geb-bug-gnu-emacs@m.gmane.org; Wed, 14 Sep 2016 21:24:12 +0200 Original-Received: from localhost ([::1]:58330 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkFn1-0004vX-0H for geb-bug-gnu-emacs@m.gmane.org; Wed, 14 Sep 2016 15:24:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:53170) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkFmu-0004vH-Ko for bug-gnu-emacs@gnu.org; Wed, 14 Sep 2016 15:24:05 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bkFms-0001ic-GQ for bug-gnu-emacs@gnu.org; Wed, 14 Sep 2016 15:24:03 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:33863) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkFms-0001iV-DD for bug-gnu-emacs@gnu.org; Wed, 14 Sep 2016 15:24:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bkFms-0006XA-7V for bug-gnu-emacs@gnu.org; Wed, 14 Sep 2016 15:24:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 14 Sep 2016 19:24:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 21730 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 21730-submit@debbugs.gnu.org id=B21730.147388103725106 (code B ref 21730); Wed, 14 Sep 2016 19:24:02 +0000 Original-Received: (at 21730) by debbugs.gnu.org; 14 Sep 2016 19:23:57 +0000 Original-Received: from localhost ([127.0.0.1]:59808 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bkFmn-0006Ws-AS for submit@debbugs.gnu.org; Wed, 14 Sep 2016 15:23:57 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:33931) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bkFmm-0006Wf-5F for 21730@debbugs.gnu.org; Wed, 14 Sep 2016 15:23:56 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bkFmg-0001dy-21 for 21730@debbugs.gnu.org; Wed, 14 Sep 2016 15:23:50 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:53534) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkFmb-0001Z0-Fm; Wed, 14 Sep 2016 15:23:45 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4326 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1bkFmY-0002jg-Oy; Wed, 14 Sep 2016 15:23:44 -0400 In-reply-to: (message from Philipp Stephani on Wed, 14 Sep 2016 18:43:13 +0000) 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:123308 Archived-At: > From: Philipp Stephani > Date: Wed, 14 Sep 2016 18:43:13 +0000 > Cc: 21730@debbugs.gnu.org, mwd@md5i.com > > Since the problem that caused the patch to be reverted was with > narrowing, why not simply use > > (= point (with-current-buffer (window-buffer window) (point-min))) > > instead of > > (= point 1) > > ? > > This has the same issues as described above. There's more code in cursor-sensor--detect that assumes (eq > (current-buffer) (window-buffer window)), e.g. the form (get-char-property point 'cursor-sensor-functions). > Therefore (= point (with-current-buffer (window-buffer window) (point-min))) must be the same as (bobp). > Another mystery is the stack trace entry "run-hook-with-args(cursor-sensor--detect # *Group*>)". How can cursor-sensor--detect be the first argument to run-hook-with-args? Shouldn't it always > be pre-redisplay-functions? If we want to dig deeper, I think we should first understand why bop doesn't work. Is it indeed because the window's buffer is not the current buffer when the hook is called?