From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!.POSTED!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Bignum speedup patch causes crash at startup
Date: Tue, 04 Sep 2018 20:50:14 +0300
Message-ID: <83tvn5xicp.fsf@gnu.org>
References: <vz136upgx7s.fsf@gmail.com>
	<c70ebf9d-8b75-fbee-5644-d7bd0ee95fb6@cs.ucla.edu>
	<vz1sh2pf9jw.fsf@gmail.com>
NNTP-Posting-Host: blaine.gmane.org
X-Trace: blaine.gmane.org 1536083345 2638 195.159.176.226 (4 Sep 2018 17:49:05 GMT)
X-Complaints-To: usenet@blaine.gmane.org
NNTP-Posting-Date: Tue, 4 Sep 2018 17:49:05 +0000 (UTC)
Cc: emacs-devel@gnu.org
To: Andy Moreton <andrewjmoreton@gmail.com>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Sep 04 19:49:01 2018
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
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 <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>)
	id 1fxFRl-0000Ut-5U
	for ged-emacs-devel@m.gmane.org; Tue, 04 Sep 2018 19:49:01 +0200
Original-Received: from localhost ([::1]:52049 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>)
	id 1fxFTr-0006t1-49
	for ged-emacs-devel@m.gmane.org; Tue, 04 Sep 2018 13:51:11 -0400
Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37037)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <eliz@gnu.org>) id 1fxFT9-0006sf-7w
	for emacs-devel@gnu.org; Tue, 04 Sep 2018 13:50:27 -0400
Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <eliz@gnu.org>) id 1fxFT6-0008AA-2c
	for emacs-devel@gnu.org; Tue, 04 Sep 2018 13:50:27 -0400
Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:49007)
	by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@gnu.org>)
	id 1fxFT4-00089R-1R; Tue, 04 Sep 2018 13:50:22 -0400
Original-Received: from [176.228.60.248] (port=1396 helo=home-c4e4a596f7)
	by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256)
	(Exim 4.82) (envelope-from <eliz@gnu.org>)
	id 1fxFT2-0003eG-Kt; Tue, 04 Sep 2018 13:50:21 -0400
In-reply-to: <vz1sh2pf9jw.fsf@gmail.com> (message from Andy Moreton on Tue, 04
	Sep 2018 18:37:39 +0100)
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]
X-Received-From: 2001:4830:134:3::e
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.21
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-devel/>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org
Original-Sender: "Emacs-devel" <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
Xref: news.gmane.org gmane.emacs.devel:229254
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/229254>

> From: Andy Moreton <andrewjmoreton@gmail.com>
> Date: Tue, 04 Sep 2018 18:37:39 +0100
> 
> As this patch moves init of bignum allocators later in startup, will
> this cause future problems if bignums are used early in emacs before
> dumping ?

Yes.  Ideally, bignums shouldn't be used at dump time at all, but if
we must, they should be used only after the call to init_bignum.