From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#36312: 27.0.50; (message) in display spec condition causes emacs_abort() Date: Thu, 20 Jun 2019 21:11:43 +0300 Message-ID: <83pnn8p1nk.fsf@gnu.org> References: Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="170809"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 36312@debbugs.gnu.org To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Jun 20 20:17:16 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1he1cY-000iHK-UK for geb-bug-gnu-emacs@m.gmane.org; Thu, 20 Jun 2019 20:17:15 +0200 Original-Received: from localhost ([::1]:52044 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1he1cX-00055U-N3 for geb-bug-gnu-emacs@m.gmane.org; Thu, 20 Jun 2019 14:17:13 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:43004) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1he1c5-0004zk-Nj for bug-gnu-emacs@gnu.org; Thu, 20 Jun 2019 14:16:46 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1he1YU-0001gg-0N for bug-gnu-emacs@gnu.org; Thu, 20 Jun 2019 14:13:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:35703) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1he1YT-0001ga-U7 for bug-gnu-emacs@gnu.org; Thu, 20 Jun 2019 14:13:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1he1YT-0001Vm-Lc for bug-gnu-emacs@gnu.org; Thu, 20 Jun 2019 14:13:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 20 Jun 2019 18:13:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 36312 X-GNU-PR-Package: emacs Original-Received: via spool by 36312-submit@debbugs.gnu.org id=B36312.15610543365750 (code B ref 36312); Thu, 20 Jun 2019 18:13:01 +0000 Original-Received: (at 36312) by debbugs.gnu.org; 20 Jun 2019 18:12:16 +0000 Original-Received: from localhost ([127.0.0.1]:49247 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1he1Xk-0001Uf-56 for submit@debbugs.gnu.org; Thu, 20 Jun 2019 14:12:16 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:55770) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1he1Xi-0001UU-LY for 36312@debbugs.gnu.org; Thu, 20 Jun 2019 14:12:15 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:37133) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1he1Xd-00016W-J9; Thu, 20 Jun 2019 14:12:09 -0400 Original-Received: from [176.228.60.248] (port=1442 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1he1Xa-0008La-5L; Thu, 20 Jun 2019 14:12:09 -0400 In-reply-to: (message from Pip Cet on Thu, 20 Jun 2019 16:06:25 +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: 209.51.188.43 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:160909 Archived-At: > From: Pip Cet > Date: Thu, 20 Jun 2019 16:06:25 +0000 > > In emacs -Q, evaluate > > (let ((o (make-overlay (point) (point)))) > (overlay-put o 'after-string (propertize " " 'display > '(when (message "a") > . "b")))) > > This causes a SIGABRT in the bidi stack code. Thanks. You do realize that calling 'message' in a display-spec form causes us to re-enter redisplay in the middle of redisplay? I didn't even know we allowed that, but there's something new about our display code to learn every day. Should be fixed now. P.S. Is there a chance fontification-functions will also call 'message'? Because I think we have the same problem there.