From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stephen Berman Newsgroups: gmane.emacs.bugs Subject: bug#17771: 24.3.91; SIGSEGV in cleanup_vector Date: Fri, 13 Jun 2014 14:39:42 +0200 Message-ID: <87ppid6l0x.fsf@rosalinde.fritz.box> References: <874mzp896b.fsf@rosalinde.fritz.box> <83vbs5w3h7.fsf@gnu.org> <87zjhh6su4.fsf@rosalinde.fritz.box> <83tx7pvw61.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1402663313 13328 80.91.229.3 (13 Jun 2014 12:41:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 13 Jun 2014 12:41:53 +0000 (UTC) Cc: 17771@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jun 13 14:41:45 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 1WvQnh-00063A-28 for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 Jun 2014 14:41:45 +0200 Original-Received: from localhost ([::1]:58874 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WvQng-0004F3-LP for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 Jun 2014 08:41:44 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57611) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WvQn8-0003g7-JF for bug-gnu-emacs@gnu.org; Fri, 13 Jun 2014 08:41:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WvQn1-0003B4-UM for bug-gnu-emacs@gnu.org; Fri, 13 Jun 2014 08:41:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:55129) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WvQn1-0003B0-S6 for bug-gnu-emacs@gnu.org; Fri, 13 Jun 2014 08:41:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WvQn0-0008Fq-PR for bug-gnu-emacs@gnu.org; Fri, 13 Jun 2014 08:41:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stephen Berman Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 13 Jun 2014 12:41:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17771 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17771-submit@debbugs.gnu.org id=B17771.140266321731641 (code B ref 17771); Fri, 13 Jun 2014 12:41:02 +0000 Original-Received: (at 17771) by debbugs.gnu.org; 13 Jun 2014 12:40:17 +0000 Original-Received: from localhost ([127.0.0.1]:46279 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WvQmC-0008E0-Mb for submit@debbugs.gnu.org; Fri, 13 Jun 2014 08:40:16 -0400 Original-Received: from mout.gmx.net ([212.227.17.21]:57581) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WvQm4-0008D7-9I for 17771@debbugs.gnu.org; Fri, 13 Jun 2014 08:40:08 -0400 Original-Received: from rosalinde.fritz.box ([89.245.69.84]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0LoVja-1WEwLP3waI-00gaNd; Fri, 13 Jun 2014 14:39:58 +0200 In-Reply-To: <83tx7pvw61.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 13 Jun 2014 15:19:50 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.91 (gnu/linux) X-Provags-ID: V03:K0:aMBM3BbQFQFCkibkq07GxK3vbNz381o692GCUmdEq4MQLEM+d4L e3FbDH3i8TgjXzIxB/j7uHgEPTENP7efvVl+0pt2H7v5zXNPLJZhlft79w6M6/vw2oV2NgC +7kyzmAqfK1I6oKl5hZDYwSAMKGm2EiRIwu5q1tEDeRy+2+TTuQw7XPLExd2sskCbynQAFP YSCOG+BqPw3okNR8GkWeQ== 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:90323 Archived-At: On Fri, 13 Jun 2014 15:19:50 +0300 Eli Zaretskii wrote: >> From: Stephen Berman >> Cc: 17771@debbugs.gnu.org >> Date: Fri, 13 Jun 2014 11:50:59 +0200 >> >> On Fri, 13 Jun 2014 12:41:56 +0300 Eli Zaretskii wrote: >> >> >> From: Stephen Berman >> >> Date: Fri, 13 Jun 2014 11:12:44 +0200 >> >> >> >> >> >> 0. emacs -Q >> >> 1. C-h h (on my machine, it takes ~30 seconds for the Hello file to >> >> appear; during that time, do the following:) >> >> 2. Type C-g repeatedly (I did it rapidly, for ~15 seconds). >> >> 3. Emacs crashes, full backtrace below. (This is reliably reproducible.) >> > >> > Not here, but this is Windows, where input is treated very >> > differently. >> > >> >> Program received signal SIGSEGV, Segmentation fault. >> >> 0x00000000005aa564 in cleanup_vector (vector=0x43b4ea8) >> >> at ../../../../bzr/emacs/emacs-24/src/alloc.c:2929 >> >> 2929 ((struct font *) vector)->driver->close ((struct font *) vector); >> > >> > So which one is the bad pointer, vector, vector->driver, or >> > vector->driver->close? >> >> If you're asking me, can you tell me what to type in gdb to find out? > > (gdb) p vector > (gdb) p vector->driver > (gdb) p vector->driver->close > > Thanks. Program received signal SIGSEGV, Segmentation fault. 0x00000000005aa564 in cleanup_vector (vector=0x413c318) at ../../../../bzr/emacs/emacs-24/src/alloc.c:2929 2929 ((struct font *) vector)->driver->close ((struct font *) vector); (gdb) p vector $1 = (struct Lisp_Vector *) 0x413c318 (gdb) p vector->driver There is no member named driver. (gdb) p vector->driver->close There is no member named driver.