From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: Certain numbers of special forms cause changing behaviour on function calls in --batch Date: Sun, 10 Jul 2016 19:37:43 +0200 Message-ID: <87mvlp2y3c.fsf@linux-m68k.org> References: <8760stvwzp.fsf@web.de> <834m8cvu9p.fsf@gnu.org> <87h9cbpw61.fsf@web.de> <83wpl7v1sg.fsf@gnu.org> <87a8i2dfe3.fsf@web.de> <83poqyvh58.fsf@gnu.org> <87shvu1ixp.fsf@web.de> <8360spvn6i.fsf@gnu.org> <8760sjn5me.fsf@web.de> <871t37n51y.fsf@web.de> <8337nmon4l.fsf@gnu.org> <87mvluomaz.fsf@web.de> <83mvlun6zc.fsf@gnu.org> <83bn25fst6.fsf@gnu.org> <83vb0de91c.fsf@gnu.org> <87r3b12zcg.fsf@linux-m68k.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1468172285 22349 80.91.229.3 (10 Jul 2016 17:38:05 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 10 Jul 2016 17:38:05 +0000 (UTC) Cc: michael_heerdegen@web.de, yasushi.shoji@gmail.com, me@wilfred.me.uk, Noam Postavsky , emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jul 10 19:38:00 2016 Return-path: Envelope-to: ged-emacs-devel@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 1bMIg4-0007be-0P for ged-emacs-devel@m.gmane.org; Sun, 10 Jul 2016 19:38:00 +0200 Original-Received: from localhost ([::1]:56163 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMIg3-00032U-Ah for ged-emacs-devel@m.gmane.org; Sun, 10 Jul 2016 13:37:59 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44969) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMIfv-00031R-9X for emacs-devel@gnu.org; Sun, 10 Jul 2016 13:37:52 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bMIfu-000354-9S for emacs-devel@gnu.org; Sun, 10 Jul 2016 13:37:51 -0400 Original-Received: from mail-out.m-online.net ([2001:a60:0:28:0:1:25:1]:50760) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMIfq-00034b-9h; Sun, 10 Jul 2016 13:37:46 -0400 Original-Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 3rnb605qBBz3hkq2; Sun, 10 Jul 2016 19:37:44 +0200 (CEST) Original-Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 3rnb6059V1zvkHt; Sun, 10 Jul 2016 19:37:44 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de Original-Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavisd-new, port 10024) with ESMTP id YMFa8EB7kKMw; Sun, 10 Jul 2016 19:37:43 +0200 (CEST) X-Auth-Info: Q8JOOOwIYYTZVKrUR4VAffx/PfeJDyky/id5K5tA6P0LJc+MjWbFT3egfgAWI1jH Original-Received: from igel.home (ppp-88-217-3-50.dynamic.mnet-online.de [88.217.3.50]) by mail.mnet-online.de (Postfix) with ESMTPA; Sun, 10 Jul 2016 19:37:43 +0200 (CEST) Original-Received: by igel.home (Postfix, from userid 1000) id 5201D2C2D79; Sun, 10 Jul 2016 19:37:43 +0200 (CEST) X-Yow: I have nostalgia for the late Sixties! In 1969 I left my laundry with a hippie!! During an unauthorized Tupperware party it was chopped & diced! In-Reply-To: <87r3b12zcg.fsf@linux-m68k.org> (Andreas Schwab's message of "Sun, 10 Jul 2016 19:10:39 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.95 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 2001:a60:0:28:0:1:25:1 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:205515 Archived-At: Andreas Schwab writes: > Eli Zaretskii writes: > >> That's what I see, thanks. Very strange, this error from valgrind. >> And we are none the wiser. > > --track-origins=yes gives more information. > > ==25255== Conditional jump or move depends on uninitialised value(s) > ==25255== at 0x5F597E: MARKERP (lisp.h:2614) > ==25255== by 0x5F597E: exec_byte_code (bytecode.c:1367) > ==25255== by 0x5B4582: Ffuncall (eval.c:2754) > ==25255== by 0x5F394C: exec_byte_code (bytecode.c:880) > ==25255== by 0x5B4582: Ffuncall (eval.c:2754) > ==25255== by 0x5F394C: exec_byte_code (bytecode.c:880) > ==25255== by 0x5B336C: apply_lambda (eval.c:2794) > ==25255== by 0x5B36B2: eval_sub (eval.c:2241) > ==25255== by 0x5B3EEC: Fprogn (eval.c:426) > ==25255== by 0x5B3BFC: eval_sub (eval.c:2119) > ==25255== by 0x5B3BFC: eval_sub (eval.c:2119) > ==25255== by 0x5B3EEC: Fprogn (eval.c:426) > ==25255== by 0x5AD694: Fsave_excursion (editfns.c:1014) > ==25255== Uninitialised value was created by a stack allocation > ==25255== at 0x57942A: Fvertical_motion (indent.c:1993) > > One of the local variables of Fvertical_motion isn't properly > initialized. This is executing this part from line-move-1: 243:18 constant vertical-motion 244 constant 1 245 call 1 246 constant 0 247 eqlsign Thus it is actually it.vpos that is not initialized. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."