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#12839: 24.3.50; Emacs aborts in GC Date: Fri, 09 Nov 2012 16:16:49 +0200 Message-ID: <83ehk2zwry.fsf@gnu.org> References: <83625g10jw.fsf@gnu.org> <83zk2rzr6f.fsf@gnu.org> <509C7B1A.2070009@yandex.ru> <83vcdfz1b9.fsf@gnu.org> <509D0266.807@yandex.ru> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1352470639 25158 80.91.229.3 (9 Nov 2012 14:17:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 9 Nov 2012 14:17:19 +0000 (UTC) Cc: 12839@debbugs.gnu.org To: Dmitry Antipov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Nov 09 15:17:23 2012 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 1TWpOc-0005Fl-6e for geb-bug-gnu-emacs@m.gmane.org; Fri, 09 Nov 2012 15:17:22 +0100 Original-Received: from localhost ([::1]:50286 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TWpOS-0004pg-Qx for geb-bug-gnu-emacs@m.gmane.org; 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Fri, 09 Nov 2012 14:17:02 +0000 Original-Received: (at 12839) by debbugs.gnu.org; 9 Nov 2012 14:16:55 +0000 Original-Received: from localhost ([127.0.0.1]:57335 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TWpOB-0001Rb-6a for submit@debbugs.gnu.org; Fri, 09 Nov 2012 09:16:55 -0500 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:45092) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TWpO8-0001RR-Oc for 12839@debbugs.gnu.org; Fri, 09 Nov 2012 09:16:54 -0500 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0MD800L004Q2T600@a-mtaout20.012.net.il> for 12839@debbugs.gnu.org; Fri, 09 Nov 2012 16:16:43 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MD800LJZ4ZVPB80@a-mtaout20.012.net.il>; Fri, 09 Nov 2012 16:16:43 +0200 (IST) In-reply-to: <509D0266.807@yandex.ru> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.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:66686 Archived-At: > Date: Fri, 09 Nov 2012 17:17:26 +0400 > From: Dmitry Antipov > CC: 12839@debbugs.gnu.org > > On 11/09/2012 11:24 AM, Eli Zaretskii wrote: > > > I'd be happy to try debugging this myself, but I need guidance > > regarding some basics of what you changed recently in this area. > > Alternatively, tell me what to do in GDB, and I will post the results. > > I'm quite fluent with GDB, and reproducing this is extremely easy :-(. > > Try this: > > === modified file 'src/w32term.h' > --- src/w32term.h 2012-10-17 19:02:44 +0000 > +++ src/w32term.h 2012-11-09 13:13:43 +0000 > @@ -414,10 +414,8 @@ > vector. */ > > struct scroll_bar { > - > - /* These fields are shared by all vectors. */ > - EMACS_INT size_from_Lisp_Vector_struct; > - struct Lisp_Vector *next_from_Lisp_Vector_struct; > + /* This field is shared by all vectors. */ > + struct vectorlike_header header; > > /* The window we're a scroll bar for. */ > Lisp_Object window; I applied this together with the other patch you sent, and the 2 crashes I saw earlier do not happen anymore. Thanks. > This is Windows-specific and obviously wrong since sizeof (struct vectorlike_header) > is now _less than_ sizeof (EMACS_INT) + sizeof (struct Lisp_Vector *). If it's wrong, why use it? What would be the right change?