From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: GC crash on optimized build on Windows Date: Mon, 27 Feb 2012 20:23:57 +0200 Message-ID: <83399wkude.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: dough.gmane.org 1330366931 31012 80.91.229.3 (27 Feb 2012 18:22:11 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 27 Feb 2012 18:22:11 +0000 (UTC) Cc: emacs-devel@gnu.org To: Juanma Barranquero Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Feb 27 19:22:10 2012 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 1S25D6-0006GD-MO for ged-emacs-devel@m.gmane.org; Mon, 27 Feb 2012 19:22:08 +0100 Original-Received: from localhost ([::1]:34020 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S25D5-0007Ga-Uj for ged-emacs-devel@m.gmane.org; Mon, 27 Feb 2012 13:22:07 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:51867) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S25D3-0007GR-2k for emacs-devel@gnu.org; Mon, 27 Feb 2012 13:22:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S25D1-000735-O3 for emacs-devel@gnu.org; Mon, 27 Feb 2012 13:22:04 -0500 Original-Received: from mtaout23.012.net.il ([80.179.55.175]:59795) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S25D1-00072q-Ft for emacs-devel@gnu.org; Mon, 27 Feb 2012 13:22:03 -0500 Original-Received: from conversion-daemon.a-mtaout23.012.net.il by a-mtaout23.012.net.il (HyperSendmail v2007.08) id <0M0200500DHRH500@a-mtaout23.012.net.il> for emacs-devel@gnu.org; Mon, 27 Feb 2012 20:21:55 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([77.124.119.92]) by a-mtaout23.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0M020055MDOFCFC0@a-mtaout23.012.net.il>; Mon, 27 Feb 2012 20:21:52 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 (beta) X-Received-From: 80.179.55.175 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:148824 Archived-At: > From: Juanma Barranquero > Date: Mon, 27 Feb 2012 14:05:52 +0100 > > I just had a gc crash on an optimized build. I'm not going to file a > bug report yet because I don't think it is repeatable at will, but I > have the gdb session open in case someone wants me to check anything. Can you try applying the technique for debugging crashes in GC that is outlined in etc/DEBUG? > #2 0x0100ffda in compact_small_strings () at alloc.c:2271 > nbytes = 29184 > tb = > from = > end = 0x372dffc > tb_end = 0x372dffc > from_end = > b = 0x372c000 > next = > to = > to_end = In this frame, what does "info address from" say? If it says that `from' is stored in some register, can you display the value of that register, and using that value reproduce what is from->string? And which Emacs version is that: 24.0.93 or 24.0.94?