From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: When should ralloc.c be used? Date: Fri, 28 Oct 2016 10:43:35 -0400 Message-ID: References: <83eg36n6v5.fsf@gnu.org> <83shrl523p.fsf@gnu.org> <83eg354ux3.fsf@gnu.org> <4f0c2868-d408-a5c4-d5a8-90dae750eb33@dancol.org> <878tt9ggdk.fsf@ritchie.wxcvbn.org> <83k2cssypt.fsf@gnu.org> <6350b2df-fde9-e716-d279-9f29438f8ee5@dancol.org> <83d1ikswsf.fsf@gnu.org> <7ab47b94-c662-1351-0dd3-ed5269842438@dancol.org> <83bmy4stax.fsf@gnu.org> <83a8dosls8.fsf@gnu.org> <8337jgsg01.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1477665912 10611 195.159.176.226 (28 Oct 2016 14:45:12 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 28 Oct 2016 14:45:12 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Oct 28 16:45:08 2016 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1c08OT-00067H-NF for ged-emacs-devel@m.gmane.org; Fri, 28 Oct 2016 16:44:29 +0200 Original-Received: from localhost ([::1]:49572 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c08OW-0001zs-9i for ged-emacs-devel@m.gmane.org; Fri, 28 Oct 2016 10:44:32 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:47216) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c08Nj-0001yC-8B for emacs-devel@gnu.org; Fri, 28 Oct 2016 10:43:43 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c08Ni-0006v7-Hd for emacs-devel@gnu.org; Fri, 28 Oct 2016 10:43:43 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:14865) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c08Nd-0006sS-V0; Fri, 28 Oct 2016 10:43:38 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0CVAgALW9BX/9ly3mhdHAaDLwEBAQEBHoRNhVCvdoIDhhYEAgKBaTkUAQIBAQEBAQEBXieEYgEBAwFWIxALNBIUGA0kiFUIvFUBAQgCJYp9ihwBBJlZkRUBh3eGC5BLHjaEbCCGCgEBAQ X-IPAS-Result: A0CVAgALW9BX/9ly3mhdHAaDLwEBAQEBHoRNhVCvdoIDhhYEAgKBaTkUAQIBAQEBAQEBXieEYgEBAwFWIxALNBIUGA0kiFUIvFUBAQgCJYp9ihwBBJlZkRUBh3eGC5BLHjaEbCCGCgEBAQ X-IronPort-AV: E=Sophos;i="5.30,296,1470715200"; d="scan'208";a="277442098" Original-Received: from 104-222-114-217.cpe.teksavvy.com (HELO ceviche.home) ([104.222.114.217]) by smtp.teksavvy.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 28 Oct 2016 10:43:35 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 8B56B66238; Fri, 28 Oct 2016 10:43:35 -0400 (EDT) In-Reply-To: <8337jgsg01.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 28 Oct 2016 17:30:22 +0300") X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 206.248.154.181 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:208948 Archived-At: >> > But if committing more pages from the reserved range is not guaranteed >> > to succeed, I cannot rely on getting that contiguous range of >> > addresses, can I? >> It should only fail in those cases where a new mmap (or malloc) would >> also fail. > That means never, for all practical purposes. Of course, Stefan