From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#17168: 24.3.50; Segfault at mark_object Date: Sun, 06 Apr 2014 18:06:56 +0300 Message-ID: <838uri8pkf.fsf@gnu.org> References: <87y4zop44m.fsf@yahoo.fr> <533C3AF5.6070502@yandex.ru> <533C6905.9060309@dancol.org> <83bnwjbh8v.fsf@gnu.org> <533C75A6.60900@dancol.org> <533D06E6.2060001@yandex.ru> <533D07EF.1040502@yandex.ru> <533D13E2.3060300@dancol.org> <533D251E.3030108@dancol.org> <533D6A19.8050504@yandex.ru> <533D9099.3000104@dancol.org> <533D9F2C.7030500@yandex.ru> <533D9FBB.2050803@dancol.org> <533DB4F0.20706@dancol.org> <534085B1.9070307@dancol.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1396796903 17963 80.91.229.3 (6 Apr 2014 15:08:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 6 Apr 2014 15:08:23 +0000 (UTC) Cc: 17168@debbugs.gnu.org, dmantipov@yandex.ru To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Apr 06 17:08:16 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1WWogB-0002K9-RP for geb-bug-gnu-emacs@m.gmane.org; Sun, 06 Apr 2014 17:08:15 +0200 Original-Received: from localhost ([::1]:58341 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WWogB-0007mS-D0 for geb-bug-gnu-emacs@m.gmane.org; Sun, 06 Apr 2014 11:08:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44978) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WWog4-0007mI-2R for bug-gnu-emacs@gnu.org; Sun, 06 Apr 2014 11:08:12 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WWofz-0005Rh-0W for bug-gnu-emacs@gnu.org; Sun, 06 Apr 2014 11:08:08 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:37014) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WWofy-0005Rd-TS for bug-gnu-emacs@gnu.org; Sun, 06 Apr 2014 11:08:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WWofy-0000Fq-GN for bug-gnu-emacs@gnu.org; Sun, 06 Apr 2014 11:08:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 06 Apr 2014 15:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17168 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 17168-submit@debbugs.gnu.org id=B17168.1396796845924 (code B ref 17168); Sun, 06 Apr 2014 15:08:02 +0000 Original-Received: (at 17168) by debbugs.gnu.org; 6 Apr 2014 15:07:25 +0000 Original-Received: from localhost ([127.0.0.1]:38196 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WWofN-0000En-4G for submit@debbugs.gnu.org; Sun, 06 Apr 2014 11:07:25 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:45105) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WWofJ-0000ET-JI for 17168@debbugs.gnu.org; Sun, 06 Apr 2014 11:07:23 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0N3M00A00777V200@a-mtaout22.012.net.il> for 17168@debbugs.gnu.org; Sun, 06 Apr 2014 18:07:09 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0N3M009VR7BXUM90@a-mtaout22.012.net.il>; Sun, 06 Apr 2014 18:07:09 +0300 (IDT) In-reply-to: X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:87801 Archived-At: > From: Stefan Monnier > Date: Sun, 06 Apr 2014 08:36:02 -0400 > Cc: Dmitry Antipov , 17168@debbugs.gnu.org > > > This scheme works and passes Dmitry's test, but the resulting > > Vpure_reachable vector has over 8,000 items. Most of these items are > > ordinary interned symbols. > > What objects are there besides symbols in Vpure_reachable? > If we can reduce Vpure_reachable to only contain symbols, then we can > replace it with a `pinned' bit in the Lisp_Symbol struct and then walk > the list of symbols during mark, marking all those symbols with the > `pinned' bit. As an alternative, would it make sense to try to understand why the problems started when they did? IOW, how come we never saw this until now? In http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15583#23, Richard provided the last good revno (113938) and the first bad one (114268); I looked at that range of revisions, and 114156 looks relevant. How about if we revert it and see if the problems go away?