From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: 64-bit emacs crashes a lot Date: Fri, 16 Aug 2013 18:03:25 +0300 Message-ID: <83li41n0ea.fsf@gnu.org> References: <51F3151D.7040000@cs.utoronto.ca> <51F33565.1090406@cornell.edu> <51F33F52.4060405@cs.utoronto.ca> <51FB1D9E.5090102@cs.utoronto.ca> <20130802080211.GA18054@calimero.vinschen.de> <51FB9228.2020309@cornell.edu> <51FBA100.90005@cs.utoronto.ca> <51FD5462.5020400@cs.utoronto.ca> <51FFBDFF.7040501@cornell.edu> <51FFC4F2.8080909@cs.utoronto.ca> <5203D89E.6030801@cornell.edu> <5203DCCA.1010105@cs.utoronto.ca> <5205B364.8090007@cs.utoronto.ca> <52064730.50404@cornell.edu> <"52065B3C.6060104@cs.utoronto <520CCA41.3000107"@cs.utoronto.ca> <520D089A.1020806@cornell.edu> <83ioz6op5v.fsf@gnu.org> <520D4036.8010303@cs.utoronto.ca> <520D900A.8000907@cornell.edu> <834naqnh9t.fsf@gnu.org> <520E0FF8.1070709@cs.utoronto.ca> <83txipn4n4.fsf@gnu.org> <520E3510.8080101@cornell.edu> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1376665388 8812 80.91.229.3 (16 Aug 2013 15:03:08 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 16 Aug 2013 15:03:08 +0000 (UTC) Cc: ryan.johnson@cs.utoronto.ca, emacs-devel@gnu.org To: Ken Brown Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Aug 16 17:03:09 2013 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 1VALYT-0005rE-Aa for ged-emacs-devel@m.gmane.org; Fri, 16 Aug 2013 17:03:09 +0200 Original-Received: from localhost ([::1]:59549 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VALYS-0006jt-SA for ged-emacs-devel@m.gmane.org; Fri, 16 Aug 2013 11:03:08 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55748) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VALYK-0006eW-K4 for emacs-devel@gnu.org; Fri, 16 Aug 2013 11:03:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VALYF-0006QY-Si for emacs-devel@gnu.org; Fri, 16 Aug 2013 11:03:00 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:35835) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VALYF-0006QE-Kt for emacs-devel@gnu.org; Fri, 16 Aug 2013 11:02:55 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0MRM00800PPJ1D00@a-mtaout22.012.net.il> for emacs-devel@gnu.org; Fri, 16 Aug 2013 18:02:53 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MRM007XIPSRUY40@a-mtaout22.012.net.il>; Fri, 16 Aug 2013 18:02:53 +0300 (IDT) In-reply-to: <520E3510.8080101@cornell.edu> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 X-Received-From: 80.179.55.172 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:162816 Archived-At: > Date: Fri, 16 Aug 2013 10:20:00 -0400 > From: Ken Brown > CC: Ryan Johnson , emacs-devel@gnu.org > > Here's some speculation. On 64-bit Cygwin, the space allocated to the > heap and mmap goes from 0x6:00000000 to 0x700:00000000, with the heap > starting at the bottom and mmaps allocated from the top down. (I've > added the colons for readability). Is it possible that the optimized > build takes shortcuts that are somehow incompatible with this model? I don't see how optimizations can take any shortcuts when a function call is involved. But maybe I'm missing something, and someone else will have an idea.