From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Chong Yidong Newsgroups: gmane.emacs.devel Subject: Re: valgrind warnings [Re: Emacs bzr memory footprint] Date: Sat, 29 Oct 2011 11:40:06 +0800 Message-ID: <87wrbov52h.fsf@gnu.org> References: <87sjmvpmd2.fsf@lifelogs.com> <87aa93wmc4.fsf@turtle.gmx.de> <87sjmnrdjw.fsf@spindle.srvr.nix> <87ty73mc0m.fsf@spindle.srvr.nix> <4EA19111.7060401@yandex.ru> <87vcrhfmww.fsf@uwakimon.sk.tsukuba.ac.jp> <87pqhpf1qo.fsf@uwakimon.sk.tsukuba.ac.jp> <87k47qaxvz.fsf@lifelogs.com> <83bot1bovw.fsf@gnu.org> <87y5w531eo.fsf@uwakimon.sk.tsukuba.ac.jp> <83zkgla1mg.fsf@gnu.org> <87vcr92z6x.fsf@uwakimon.sk.tsukuba.ac.jp> <83ty6t9zd0.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1319859630 2303 80.91.229.12 (29 Oct 2011 03:40:30 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 29 Oct 2011 03:40:30 +0000 (UTC) Cc: Eli Zaretskii , emacs-devel@gnu.org To: Dan Nicolaescu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Oct 29 05:40:26 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RJzmS-0002c3-NR for ged-emacs-devel@m.gmane.org; Sat, 29 Oct 2011 05:40:24 +0200 Original-Received: from localhost ([::1]:36559 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RJzmP-0003V0-1I for ged-emacs-devel@m.gmane.org; Fri, 28 Oct 2011 23:40:21 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:54924) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RJzmL-0003JP-5h for emacs-devel@gnu.org; Fri, 28 Oct 2011 23:40:18 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RJzmJ-0003nG-Ub for emacs-devel@gnu.org; Fri, 28 Oct 2011 23:40:17 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]:52320) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RJzmJ-0003nC-PH for emacs-devel@gnu.org; Fri, 28 Oct 2011 23:40:15 -0400 Original-Received: from [155.69.18.173] (port=56447 helo=furball) by fencepost.gnu.org with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1RJzmI-0003Go-PJ; Fri, 28 Oct 2011 23:40:15 -0400 In-Reply-To: (Dan Nicolaescu's message of "Fri, 28 Oct 2011 16:20:25 -0400") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.90 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 140.186.70.10 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:145738 Archived-At: Dan Nicolaescu writes: >> ==30382== Use of uninitialised value of size 8 >> ==30382== at 0x5B7000: mark_object (alloc.c:5674) >> ==30382== by 0x5B4C9B: mark_maybe_object (alloc.c:4152) >> ==30382== by 0x5B4FE6: mark_memory (alloc.c:4274) >> ==30382== by 0x5B507E: mark_stack (alloc.c:4532) >> ==30382== by 0x5B5F48: Fgarbage_collect (alloc.c:5119) >> ==30382== by 0x5D69F0: Ffuncall (eval.c:2911) >> ==30382== by 0x5D64CA: call2 (eval.c:2758) >> ==30382== by 0x5809AA: Finsert_file_contents (fileio.c:4144) >> ==30382== by 0x5D6E00: Ffuncall (eval.c:2990) >> ==30382== by 0x622C5B: exec_byte_code (bytecode.c:785) >> ==30382== by 0x5D77BA: funcall_lambda (eval.c:3205) >> ==30382== by 0x5D6F4C: Ffuncall (eval.c:3023) > > It would be interesting to know if the gc warnings are relevant... This is complaining about the plist member of struct Lisp_Overlay, but I don't see how an uninitalized value could creep in there. Overlays are only allocated in copy_overlays and Fmake_overlay, and in both places the plist member appears to be assigned correctly.