From unknown Fri Jun 20 07:18:30 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#21152 <21152@debbugs.gnu.org> To: bug#21152 <21152@debbugs.gnu.org> Subject: Status: emacs make system blocked if "Xft/DPI = -1" in xsettings Reply-To: bug#21152 <21152@debbugs.gnu.org> Date: Fri, 20 Jun 2025 14:18:30 +0000 retitle 21152 emacs make system blocked if "Xft/DPI =3D -1" in xsettings reassign 21152 emacs submitter 21152 Xu Fasheng severity 21152 normal thanks From debbugs-submit-bounces@debbugs.gnu.org Tue Jul 28 11:32:39 2015 Received: (at submit) by debbugs.gnu.org; 28 Jul 2015 15:32:40 +0000 Received: from localhost ([127.0.0.1]:32905 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZK6rv-00081o-AP for submit@debbugs.gnu.org; Tue, 28 Jul 2015 11:32:39 -0400 Received: from eggs.gnu.org ([208.118.235.92]:49313) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZJxuM-00084c-CV for submit@debbugs.gnu.org; Tue, 28 Jul 2015 01:58:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZJxuK-0000VO-Tu for submit@debbugs.gnu.org; Tue, 28 Jul 2015 01:58:33 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, T_DKIM_INVALID autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:56732) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJxuK-0000VC-Qi for submit@debbugs.gnu.org; Tue, 28 Jul 2015 01:58:32 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34567) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJxuJ-0000bC-Se for bug-gnu-emacs@gnu.org; Tue, 28 Jul 2015 01:58:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZJxuI-0000Tb-CU for bug-gnu-emacs@gnu.org; Tue, 28 Jul 2015 01:58:31 -0400 Received: from mail-wi0-x22b.google.com ([2a00:1450:400c:c05::22b]:35055) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJxuI-0000T1-4q for bug-gnu-emacs@gnu.org; Tue, 28 Jul 2015 01:58:30 -0400 Received: by wibxm9 with SMTP id xm9so140860324wib.0 for ; Mon, 27 Jul 2015 22:58:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=AnBIRRB9ordO8JRrQvKztl978z8v/+O5jQ3Nabc/I+8=; b=0zrcQKkQH9HBdLahpDVtyCA7jowgiA0bDm1uujQNV1L166bVCVa6dtGh6C3ZVKFbgR 8d4zbtIgfTDjFTkU1tJGaX2SkJBsMMfCvO4Klk5XtrcTbkDl85JOdA1N+vxZDEIXXfyQ SoHU27v/cSEvJjgIrlpj4M02YcJIT719N9Khe+6QorhXoERLXKcyLa6OoRAhNu/tbnks 0mB2D3gKqvDuiI34WzgSmqODR2R/GLp/2pxVdIxbrl69K/NATW2BObjv2KbgEMws4GUU CH7mmzbNjGXGxcSC633b7ePGDCF1aWOVS+wrqVZBA0eg5XLfDSKMlTrHcb7LkKTPNnSF uxgQ== MIME-Version: 1.0 X-Received: by 10.180.215.101 with SMTP id oh5mr3141174wic.6.1438063108788; Mon, 27 Jul 2015 22:58:28 -0700 (PDT) Received: by 10.27.17.4 with HTTP; Mon, 27 Jul 2015 22:58:28 -0700 (PDT) Date: Tue, 28 Jul 2015 13:58:28 +0800 Message-ID: Subject: emacs make system blocked if "Xft/DPI = -1" in xsettings From: Xu Fasheng To: bug-gnu-emacs@gnu.org Content-Type: text/plain; charset=UTF-8 X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Tue, 28 Jul 2015 11:32:38 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -4.0 (----) Hi, everyone. I found that emacs could not compute a right dpi value if "Xft/DPI = -1" in xsettings. The document said "Xft/DPI" is an integer, and "-1" is the default value [1]. And in the code of src/xsettings.c:parse_settings(), all the interger value in xsettings are converted to CARD32(unsigned int). So if Xft/DPI is "-1", emacs will convert it to uint(4294967295), and owns a huge dpi(4294967295/1024=4194303). Its so huge that will make system blocked. Here is the code snippets in emacs24-24.5+1/src/xsettings.c:parse_settings() from debian/sid: .... 420: CARD32 vlen, ival = 0; .... 544: else if (strcmp (name, "Xft/DPI") == 0) 545: { 546: settings->seen |= SEEN_DPI; 547: settings->dpi = (double)ival/1024.0; 548: } [1] http://www.freedesktop.org/wiki/Specifications/XSettingsRegistry/ From debbugs-submit-bounces@debbugs.gnu.org Sun Aug 09 01:10:45 2015 Received: (at 21152) by debbugs.gnu.org; 9 Aug 2015 05:10:45 +0000 Received: from localhost ([127.0.0.1]:50894 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZOIsf-0007W0-09 for submit@debbugs.gnu.org; Sun, 09 Aug 2015 01:10:45 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:57357) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZOIsd-0007Vr-0L for 21152@debbugs.gnu.org; Sun, 09 Aug 2015 01:10:43 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id DBB841601D0; Sat, 8 Aug 2015 22:10:41 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id TepXdffdgkGK; Sat, 8 Aug 2015 22:10:41 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 0B2FD160D0A; Sat, 8 Aug 2015 22:10:41 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id t8BwxQbGSIjW; Sat, 8 Aug 2015 22:10:40 -0700 (PDT) Received: from [192.168.1.9] (pool-100-32-155-148.lsanca.fios.verizon.net [100.32.155.148]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id D6C6E1601D0; Sat, 8 Aug 2015 22:10:40 -0700 (PDT) Message-ID: <55C6E0D0.2030100@cs.ucla.edu> Date: Sat, 08 Aug 2015 22:10:40 -0700 From: Paul Eggert Organization: UCLA Computer Science Department User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: Xu Fasheng Subject: Re: emacs make system blocked if "Xft/DPI = -1" in xsettings Content-Type: multipart/mixed; boundary="------------070203090401010500070700" X-Spam-Score: -0.4 (/) X-Debbugs-Envelope-To: 21152 Cc: 21152@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.4 (/) This is a multi-part message in MIME format. --------------070203090401010500070700 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Thanks for the bug report. Does the attached patch fix the problem for you? --------------070203090401010500070700 Content-Type: text/x-diff; name="xftdpi.diff" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="xftdpi.diff" diff --git a/src/xsettings.c b/src/xsettings.c index 028487b..e59bea2 100644 --- a/src/xsettings.c +++ b/src/xsettings.c @@ -537,7 +537,7 @@ parse_settings (unsigned char *prop, else settings->seen &= ~SEEN_RGBA; } - else if (strcmp (name, "Xft/DPI") == 0) + else if (strcmp (name, "Xft/DPI") == 0 && ival != (CARD32) -1) { settings->seen |= SEEN_DPI; settings->dpi = (double)ival/1024.0; --------------070203090401010500070700-- From debbugs-submit-bounces@debbugs.gnu.org Mon Aug 10 02:24:57 2015 Received: (at 21152-done) by debbugs.gnu.org; 10 Aug 2015 06:24:57 +0000 Received: from localhost ([127.0.0.1]:51683 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZOgW0-0003cQ-OJ for submit@debbugs.gnu.org; Mon, 10 Aug 2015 02:24:56 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:34856) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZOgVy-0003cI-OS for 21152-done@debbugs.gnu.org; Mon, 10 Aug 2015 02:24:55 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id DA1161601AF; Sun, 9 Aug 2015 23:24:53 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id fd9DRbAiLWvz; Sun, 9 Aug 2015 23:24:53 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 3E906160D1A; Sun, 9 Aug 2015 23:24:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id rnHqoqNj8bWw; Sun, 9 Aug 2015 23:24:53 -0700 (PDT) Received: from [192.168.1.9] (pool-100-32-155-148.lsanca.fios.verizon.net [100.32.155.148]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 1F3F01601AF; Sun, 9 Aug 2015 23:24:53 -0700 (PDT) Message-ID: <55C843B4.30601@cs.ucla.edu> Date: Sun, 09 Aug 2015 23:24:52 -0700 From: Paul Eggert Organization: UCLA Computer Science Department User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: Xu Fasheng Subject: Re: bug#21152: emacs make system blocked if "Xft/DPI = -1" in xsettings References: <55C6E0D0.2030100@cs.ucla.edu> In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 21152-done Cc: 21152-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.0 (/) Xu Fasheng wrote: > tha patch works. I rebuild emacs and tested ok. Thanks, I installed it in the Emacs master and am marking this as done. From unknown Fri Jun 20 07:18:30 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Mon, 07 Sep 2015 11:24:04 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator