From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#11913: Unusual Emacs 24.1 arithmetic error (abs) on i386 machine Date: Fri, 13 Jul 2012 22:17:39 +0300 Message-ID: <83ehofa2ss.fsf@gnu.org> References: <87wr2a5gm2.fsf@trouble.defaultvalue.org> <87a9z6ge3i.fsf@trouble.defaultvalue.org> <87fw8v5zab.fsf@trouble.defaultvalue.org> <83hatba4j1.fsf@gnu.org> <874npb4h8n.fsf@trouble.defaultvalue.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: dough.gmane.org 1342207109 24129 80.91.229.3 (13 Jul 2012 19:18:29 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 13 Jul 2012 19:18:29 +0000 (UTC) Cc: 11913@debbugs.gnu.org To: Rob Browning Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jul 13 21:18:29 2012 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1SplNk-0003nf-I3 for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 Jul 2012 21:18:28 +0200 Original-Received: from localhost ([::1]:54233 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SplNj-0003VA-RH for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 Jul 2012 15:18:27 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:52450) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SplNg-0003Tw-Kw for bug-gnu-emacs@gnu.org; Fri, 13 Jul 2012 15:18:25 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SplNf-0005mT-Jb for bug-gnu-emacs@gnu.org; Fri, 13 Jul 2012 15:18:24 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:58440) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SplNf-0005mP-G6 for bug-gnu-emacs@gnu.org; Fri, 13 Jul 2012 15:18:23 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1SplT8-0000dr-6s for bug-gnu-emacs@gnu.org; Fri, 13 Jul 2012 15:24:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 13 Jul 2012 19:24:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 11913 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 11913-submit@debbugs.gnu.org id=B11913.13422074282438 (code B ref 11913); Fri, 13 Jul 2012 19:24:02 +0000 Original-Received: (at 11913) by debbugs.gnu.org; 13 Jul 2012 19:23:48 +0000 Original-Received: from localhost ([127.0.0.1]:39753 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1SplSu-0000dG-4S for submit@debbugs.gnu.org; Fri, 13 Jul 2012 15:23:48 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:63847) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1SplSr-0000d8-QB for 11913@debbugs.gnu.org; Fri, 13 Jul 2012 15:23:46 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0M74003005LE5P00@a-mtaout20.012.net.il> for 11913@debbugs.gnu.org; Fri, 13 Jul 2012 22:17:38 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.210.75]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0M74002205LEVT80@a-mtaout20.012.net.il>; Fri, 13 Jul 2012 22:17:38 +0300 (IDT) In-reply-to: <874npb4h8n.fsf@trouble.defaultvalue.org> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:61908 Archived-At: > From: Rob Browning > Cc: Glenn Morris , 11913@debbugs.gnu.org > Date: Fri, 13 Jul 2012 14:02:16 -0500 > > Eli Zaretskii writes: > > > Do we even understand how this error happens? There's nothing even > > close to a reference to 'abs' on that line of cal-hebrew.el in my copy > > of Emacs 24.1. > > Right. While I'm not extremely knowledgeable about the process, since > that string is associated with Qarith_error (in data.c), I assumed it > was probably some code deeper down raising the exception (from either > data.c or floatfns.c). Given the fact that it only happens on i386, I > also wondered if x87 issues might be involved -- but the fact that it > only happens on *this* i386 machine (and a couple of others) suggests > the software versions matter. Does that 386 machine have an x87 co-processor? If not, what provides the floating-point emulation -- the kernel? If you compile a trivial C program that calls 'fabs' on that machine, does it work as expected, or does it bomb?