From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.bugs Subject: bug#28280: Maximally unhelpful diagnostic message. Date: Tue, 29 Aug 2017 20:15:57 +0000 Message-ID: <20170829201557.GB4339@ACM> References: <20170829184140.GA4339@ACM> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: blaine.gmane.org 1504037988 964 195.159.176.226 (29 Aug 2017 20:19:48 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 29 Aug 2017 20:19:48 +0000 (UTC) User-Agent: Mutt/1.7.2 (2016-11-26) Cc: 28280@debbugs.gnu.org To: Glenn Morris Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Aug 29 22:19:39 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 1dmmyk-0007Ft-VD for geb-bug-gnu-emacs@m.gmane.org; Tue, 29 Aug 2017 22:19:19 +0200 Original-Received: from localhost ([::1]:46798 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmmyr-00023d-IK for geb-bug-gnu-emacs@m.gmane.org; Tue, 29 Aug 2017 16:19:25 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44106) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmmyU-0001sf-SD for bug-gnu-emacs@gnu.org; Tue, 29 Aug 2017 16:19:03 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dmmyU-0005Z2-11 for bug-gnu-emacs@gnu.org; Tue, 29 Aug 2017 16:19:02 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:52473) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dmmyT-0005Yr-U9 for bug-gnu-emacs@gnu.org; Tue, 29 Aug 2017 16:19:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dmmyT-0001mB-Ly for bug-gnu-emacs@gnu.org; Tue, 29 Aug 2017 16:19:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Alan Mackenzie Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 29 Aug 2017 20:19:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 28280 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 28280-submit@debbugs.gnu.org id=B28280.15040379396818 (code B ref 28280); Tue, 29 Aug 2017 20:19:01 +0000 Original-Received: (at 28280) by debbugs.gnu.org; 29 Aug 2017 20:18:59 +0000 Original-Received: from localhost ([127.0.0.1]:32921 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dmmyR-0001lu-LW for submit@debbugs.gnu.org; Tue, 29 Aug 2017 16:18:59 -0400 Original-Received: from ocolin.muc.de ([193.149.48.4]:35116 helo=mail.muc.de) by debbugs.gnu.org with smtp (Exim 4.84_2) (envelope-from ) id 1dmmyP-0001ll-Nf for 28280@debbugs.gnu.org; Tue, 29 Aug 2017 16:18:58 -0400 Original-Received: (qmail 44670 invoked by uid 3782); 29 Aug 2017 20:18:56 -0000 Original-Received: from acm.muc.de (p548C6CED.dip0.t-ipconnect.de [84.140.108.237]) by colin.muc.de (tmda-ofmipd) with ESMTP; Tue, 29 Aug 2017 22:18:55 +0200 Original-Received: (qmail 5402 invoked by uid 1000); 29 Aug 2017 20:15:57 -0000 Content-Disposition: inline In-Reply-To: X-Delivery-Agent: TMDA/1.1.12 (Macallan) X-Primary-Address: acm@muc.de 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:136358 Archived-At: Hello, Glenn. On Tue, Aug 29, 2017 at 15:20:23 -0400, Glenn Morris wrote: > Alan Mackenzie wrote: > > Assertion failed: (eq 10 (char-before)) > A few seconds grep suggests this is due to the code in newline, added ~ > 3 years ago in 62ee8b1 ("Add assertions to try and help catch bug#18913"). > The complete lack of progress in that report since then suggests it may > be time to remove/downgrade those assertions. Yes, but that's a separate problem from the essence of the bug report. Regardless of the lack of progress on bug #18913, the information provided by an assert being triggered is unhelpful and inadequate. That aside, I can't see how the two assertions suggested in #18913 could trigger the message I saw. I'll maybe have a look at the actual patch sometime when I'm less tired. -- Alan Mackenzie (Nuremberg, Germany).