From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#55481: mostly nonrecursive printing [PATCH] Date: Tue, 17 May 2022 18:48:09 +0300 Message-ID: <83a6bggnye.fsf@gnu.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40198"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 55481@debbugs.gnu.org To: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue May 17 17:49:11 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nqzRe-000AJQ-Oq for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 17 May 2022 17:49:10 +0200 Original-Received: from localhost ([::1]:34792 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nqzRd-0008Pn-D1 for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 17 May 2022 11:49:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48500) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nqzRV-0008Pf-UP for bug-gnu-emacs@gnu.org; Tue, 17 May 2022 11:49:01 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:35529) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nqzRV-0005A8-MF for bug-gnu-emacs@gnu.org; Tue, 17 May 2022 11:49:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nqzRV-0000OI-JO for bug-gnu-emacs@gnu.org; Tue, 17 May 2022 11:49:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 17 May 2022 15:49:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 55481 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 55481-submit@debbugs.gnu.org id=B55481.16528025051448 (code B ref 55481); Tue, 17 May 2022 15:49:01 +0000 Original-Received: (at 55481) by debbugs.gnu.org; 17 May 2022 15:48:25 +0000 Original-Received: from localhost ([127.0.0.1]:57657 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nqzQu-0000NH-N9 for submit@debbugs.gnu.org; Tue, 17 May 2022 11:48:24 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:55056) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nqzQt-0000N2-L5 for 55481@debbugs.gnu.org; Tue, 17 May 2022 11:48:23 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:34332) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nqzQo-00055v-7v; Tue, 17 May 2022 11:48:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=c6SFQPSfVTyPs58p6B+LcWc2W65uJUfjx9O1ZA0UjSE=; b=G3pXYVKDpwOL7jwrGpkI dxyfTrxJmfSz4Wh7Y7tIv3UdC940NyDccRt/03bgWUjxvTlBLuaaMT1tXQ+XUcOJyk77tJgw+qfYW u9Y4OzqFbzPnu7pZouowgqRWfX+zJP2pBOLRkAv4cU0aVSNPXWhYVBlqLjYRoqTNQadiTChz5ftdQ l7bgEKKWXf0ZlAxf1BLgUF3tj6jVy2rSyvNAih+99j4duLogHIYoAcZyetWFP1bRDX2RStoK1mQzn 7/eNvGzekDg1oD1AmGMRmjTjeWxiDm8Puj09iaC3LPQW9uRs7fgHw0JpQjxASK7EOFKHinekvS49B urEX4W6BbiD+MA==; Original-Received: from [87.69.77.57] (port=2433 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nqzQn-0001YR-Nh; Tue, 17 May 2022 11:48:18 -0400 In-Reply-To: (message from Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= on Tue, 17 May 2022 15:59:16 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:232460 Archived-At: > From: Mattias Engdegård > Date: Tue, 17 May 2022 15:59:16 +0200 > > Printing deeply nested values typically crashes Emacs by running out of C stack since the printer uses C recursion to traverse nested data structures. This is a long-standing problem that keeps turning up; see bug#52753 for one example. > > The attached patch eliminates most of the recursion: conses, vectors, records, hash tables and char tables are now traversed without consuming C stack. This should cover the vast majority of objects that form deep structures. Thanks, this is an important improvement, IMO.