From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Changes in GC and in pure space Date: Tue, 23 Jul 2019 17:46:11 +0300 Message-ID: <83o91kq05o.fsf@gnu.org> References: <20190721193221.1964.53182@vcs0.savannah.gnu.org> <20190721193222.8C19E20BE2@vcs0.savannah.gnu.org> <83blxmqfkq.fsf@gnu.org> <83zhl6ortf.fsf@gnu.org> <8131cbef-3d58-1513-1fcc-5631d70211d0@cs.ucla.edu> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="129287"; mail-complaints-to="usenet@blaine.gmane.org" Cc: monnier@iro.umontreal.ca, pipcet@gmail.com, emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Jul 23 16:46:29 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hpw3g-000XVc-E0 for ged-emacs-devel@m.gmane.org; Tue, 23 Jul 2019 16:46:29 +0200 Original-Received: from localhost ([::1]:44266 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hpw3e-0002RC-SZ for ged-emacs-devel@m.gmane.org; Tue, 23 Jul 2019 10:46:26 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60620) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hpw3c-0002Qj-5d for emacs-devel@gnu.org; Tue, 23 Jul 2019 10:46:25 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:55660) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hpw3a-0000mN-Ph; Tue, 23 Jul 2019 10:46:22 -0400 Original-Received: from [176.228.60.248] (port=2841 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1hpw3Z-0002Im-Kf; Tue, 23 Jul 2019 10:46:22 -0400 In-reply-to: <8131cbef-3d58-1513-1fcc-5631d70211d0@cs.ucla.edu> (message from Paul Eggert on Mon, 22 Jul 2019 18:43:45 -0700) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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:238841 Archived-At: > Cc: pipcet@gmail.com, emacs-devel@gnu.org > From: Paul Eggert > Date: Mon, 22 Jul 2019 18:43:45 -0700 > > > Note that AFAIK we currently don't dump any such hash-tables, so if > > there's a bug there it only affects the case of the user *re*dumping > > with a special config, which AFAIK we do not intend to officially > > support yet for 27.1. > > Although I vaguely recall an email conversation to that effect, I don't see it > in the Emacs documentation. And since unexec is now disabled by default, if > people want to use any dumping method at all then by default they'll be > redumping in the way that you suggest. If we really intend to not support that, > we should be clearer about it in NEWS and documentation. We do want to support re-dumping eventually, but we are clearly not there yet. If you tried that, you probably saw a few quirks very quickly. It will take time to rectify all of them, and I agree we shouldn't aim for that milestone in Emacs 27.1.