From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: [Emacs-diffs] trunk r117741: Handle C stack overflow caused by too nested Lisp evaluation. Date: Tue, 26 Aug 2014 14:37:49 -0400 Message-ID: References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1409078296 19432 80.91.229.3 (26 Aug 2014 18:38:16 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 26 Aug 2014 18:38:16 +0000 (UTC) Cc: emacs-devel@gnu.org To: Dmitry Antipov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Aug 26 20:38:09 2014 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 1XMLdA-0002Qv-UF for ged-emacs-devel@m.gmane.org; Tue, 26 Aug 2014 20:38:09 +0200 Original-Received: from localhost ([::1]:55027 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XMLdA-0005iz-Bs for ged-emacs-devel@m.gmane.org; Tue, 26 Aug 2014 14:38:08 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:47442) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XMLd0-0005is-R8 for emacs-devel@gnu.org; Tue, 26 Aug 2014 14:38:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XMLct-00060t-Bc for emacs-devel@gnu.org; Tue, 26 Aug 2014 14:37:58 -0400 Original-Received: from pruche.dit.umontreal.ca ([132.204.246.22]:52175) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XMLct-00060W-7P for emacs-devel@gnu.org; Tue, 26 Aug 2014 14:37:51 -0400 Original-Received: from fmsmemgm.homelinux.net (lechon.iro.umontreal.ca [132.204.27.242]) by pruche.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id s7QIbnIC019824; Tue, 26 Aug 2014 14:37:50 -0400 Original-Received: by fmsmemgm.homelinux.net (Postfix, from userid 20848) id E6F8EAE093; Tue, 26 Aug 2014 14:37:49 -0400 (EDT) In-Reply-To: (Dmitry Antipov's message of "Tue, 26 Aug 2014 06:27:32 +0000") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV5045=0 X-NAI-Spam-Version: 2.3.0.9378 : core <5045> : inlines <1210> : streams <1274491> : uri <1806999> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 132.204.246.22 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:173832 Archived-At: > + DEFVAR_LISP ("top-level-message", Vtop_level_message, > + doc: /* Message displayed by `normal-top-level'. */); Why does this need to be exported to Elisp? > + /* Hard GC error may lead to stack overflow caused by > + too nested calls to mark_object. No way to survive. */ I don't see why there's no way to survive. Isn't it safe to interrupt GC within the mark phase and re-run it? Stefan