From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Chong Yidong Newsgroups: gmane.emacs.devel Subject: Re: Crashes on draw_glyphs Date: Tue, 04 Nov 2008 12:06:51 -0500 Message-ID: <87bpwvfmj8.fsf@cyd.mit.edu> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1225819237 26872 80.91.229.12 (4 Nov 2008 17:20:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 4 Nov 2008 17:20:37 +0000 (UTC) Cc: Emacs Devel To: "Juanma Barranquero" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Nov 04 18:21:36 2008 connect(): Connection refused Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1KxPak-0004Eb-MQ for ged-emacs-devel@m.gmane.org; Tue, 04 Nov 2008 18:21:22 +0100 Original-Received: from localhost ([127.0.0.1]:44570 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KxPZd-0001ax-Lg for ged-emacs-devel@m.gmane.org; Tue, 04 Nov 2008 12:20:13 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KxPMc-000400-J3 for emacs-devel@gnu.org; Tue, 04 Nov 2008 12:06:46 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KxPMZ-0003yC-PQ for emacs-devel@gnu.org; Tue, 04 Nov 2008 12:06:44 -0500 Original-Received: from [199.232.76.173] (port=37172 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KxPMZ-0003xv-Gf for emacs-devel@gnu.org; Tue, 04 Nov 2008 12:06:43 -0500 Original-Received: from cyd.mit.edu ([18.115.2.24]:58820) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KxPMZ-0000MS-HO for emacs-devel@gnu.org; Tue, 04 Nov 2008 12:06:43 -0500 Original-Received: by cyd.mit.edu (Postfix, from userid 1000) id 454AF57E1D3; Tue, 4 Nov 2008 12:06:51 -0500 (EST) In-Reply-To: (Juanma Barranquero's message of "Tue, 4 Nov 2008 17:57:21 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized. X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:105343 Archived-At: "Juanma Barranquero" writes: > The underling bug that causes #872/#1179 is really getting annoying. > > Apparently I'm the only one suffering it (perhaps I'm the only one > compiling Emacs on Windows with GCC 4.3.0), and I've been > unsuccessfully trying to debug it for weeks. Unfortunately, as soon as > I even add an assertion, the crash point moves. It seems like the > thing to do is to run draw_glyphs step-by-step, but with the macros > and all that it is quite difficult, not to mention that I know very > little about the redisplay code and that the bug is much harder to > catch when I compile a non-optimized build. > > Any help, pointer, idea, or mojo will be deeply appretiated. Is it only the composition glyph part of the 2008-04-09 change to w32term.c that causes the crash? For instance, what happens if you comment out the "else if (s->cmp) ..." part in w32_compute_glyph_string_overhangs?