From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#39865: 28.0.50; Emacs crash Date: Wed, 11 Mar 2020 18:58:41 +0200 Message-ID: <83a74makvy.fsf@gnu.org> References: <83fteryy4o.fsf@gnu.org> <837dzyuf20.fsf@gnu.org> <83a74tbc9v.fsf@gnu.org> <83tv2w9sa3.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="1212"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 39865@debbugs.gnu.org, viniciusjl@gmail.com To: Robert Pluim Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 11 17:59:16 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jC4hP-000096-JS for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 11 Mar 2020 17:59:15 +0100 Original-Received: from localhost ([::1]:55788 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jC4hO-0005q0-HY for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 11 Mar 2020 12:59:14 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51730) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jC4hG-0005mE-Cg for bug-gnu-emacs@gnu.org; Wed, 11 Mar 2020 12:59:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jC4hC-0004IQ-H8 for bug-gnu-emacs@gnu.org; Wed, 11 Mar 2020 12:59:05 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:49467) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jC4hC-0004Hz-Dm for bug-gnu-emacs@gnu.org; Wed, 11 Mar 2020 12:59:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jC4hC-0004K2-Du for bug-gnu-emacs@gnu.org; Wed, 11 Mar 2020 12:59:02 -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, 11 Mar 2020 16:59:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 39865 X-GNU-PR-Package: emacs Original-Received: via spool by 39865-submit@debbugs.gnu.org id=B39865.158394592616593 (code B ref 39865); Wed, 11 Mar 2020 16:59:02 +0000 Original-Received: (at 39865) by debbugs.gnu.org; 11 Mar 2020 16:58:46 +0000 Original-Received: from localhost ([127.0.0.1]:55440 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jC4gw-0004JZ-6r for submit@debbugs.gnu.org; Wed, 11 Mar 2020 12:58:46 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:36465) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jC4gu-0004JM-SF for 39865@debbugs.gnu.org; Wed, 11 Mar 2020 12:58:45 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:35647) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jC4gp-0003h8-Lj; Wed, 11 Mar 2020 12:58:39 -0400 Original-Received: from [176.228.60.248] (port=2216 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jC4go-00074S-6l; Wed, 11 Mar 2020 12:58:39 -0400 In-Reply-To: (message from Robert Pluim on Tue, 10 Mar 2020 16:15:09 +0100) 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:177191 Archived-At: > From: Robert Pluim > Cc: viniciusjl@gmail.com, 39865@debbugs.gnu.org > Date: Tue, 10 Mar 2020 16:15:09 +0100 > > + if (EQ (prop, Qfont_backend)) > + { > + Lisp_Object tail = val; > + Lisp_Object backend; > + FOR_EACH_TAIL_SAFE (tail) > + { > + backend = XCAR (tail); > + if (! c_symbol_p (XSYMBOL (backend))) > + { > + AUTO_STRING (format, "Unsupported font-backend: \"%s\""); > + xsignal1 (Quser_error, CALLN (Fformat, format, backend)); > + } > + } > + } > + This will pass any symbol, it doesn't really verify that the symbol identifies a font backend, does it? Why not loop over font_driver_list instead? Or do we need to support here font backends that were not yet registered? > Setting font-backend to a supported value with default-frame-alist > in .emacs should work, and does for me in master, at least switching > from 'ftcrhb' to 'ftcr'. Switching from 'ftcrhb' to 'xft' crashes. > > Hmm, switching to 'x' also crashes. And the above patch doesn't fix those crashes, does it?