From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#24911: 25.1; Emacs hangs or crashes on use of read syntax for circular objects in IELM Date: Thu, 10 Nov 2016 22:06:38 +0200 Message-ID: <83oa1ndrqp.fsf@gnu.org> References: <837f8bfgaq.fsf@gnu.org> <83zil7dz6f.fsf@gnu.org> <83shqzdv6r.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1478808518 32250 195.159.176.226 (10 Nov 2016 20:08:38 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 10 Nov 2016 20:08:38 +0000 (UTC) Cc: 24911@debbugs.gnu.org To: Gemini Lasswell Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Nov 10 21:08:34 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1c4vdp-0004xk-8H for geb-bug-gnu-emacs@m.gmane.org; Thu, 10 Nov 2016 21:08:09 +0100 Original-Received: from localhost ([::1]:49166 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c4vds-0002Bi-CJ for geb-bug-gnu-emacs@m.gmane.org; Thu, 10 Nov 2016 15:08:12 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34432) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c4vdm-0002BP-7k for bug-gnu-emacs@gnu.org; Thu, 10 Nov 2016 15:08:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c4vdi-0003Ue-8m for bug-gnu-emacs@gnu.org; Thu, 10 Nov 2016 15:08:06 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:37310) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1c4vdi-0003Ua-5Q for bug-gnu-emacs@gnu.org; Thu, 10 Nov 2016 15:08:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1c4vdi-0005nK-1E for bug-gnu-emacs@gnu.org; Thu, 10 Nov 2016 15:08:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 10 Nov 2016 20:08:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 24911 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 24911-submit@debbugs.gnu.org id=B24911.147880842222192 (code B ref 24911); Thu, 10 Nov 2016 20:08:01 +0000 Original-Received: (at 24911) by debbugs.gnu.org; 10 Nov 2016 20:07:02 +0000 Original-Received: from localhost ([127.0.0.1]:52709 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1c4vck-0005li-KK for submit@debbugs.gnu.org; Thu, 10 Nov 2016 15:07:02 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:43043) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1c4vcj-0005l4-Ec for 24911@debbugs.gnu.org; Thu, 10 Nov 2016 15:07:01 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c4vcd-00032j-KE for 24911@debbugs.gnu.org; Thu, 10 Nov 2016 15:06:56 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:47943) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c4vcU-0002za-7D; Thu, 10 Nov 2016 15:06:46 -0500 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4948 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1c4vcS-0004Ja-TD; Thu, 10 Nov 2016 15:06:45 -0500 In-reply-to: (message from Gemini Lasswell on Thu, 10 Nov 2016 11:25:52 -0800) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:125588 Archived-At: forcemerge 24640 24911 thanks > From: Gemini Lasswell > Cc: > Date: Thu, 10 Nov 2016 11:25:52 -0800 > > I have just made it happen under gdb, with a breakpoint on > handle_sigsegv. Here is the output of 'bt full'. It tells me > 'xbacktrace' is an undefined command. This is my first time working with > gdb. > > (gdb) bt full > #0 0x000000010023ca45 in mark_object (arg=...) at alloc.c:6501 > obj = {i = 4287568137794125953} > po = 0x3b8080813b808080 > cdr_count = 0 > #1 0x000000010023cca1 in mark_object (arg=...) at alloc.c:6552 > ptr = 0x7fff5fbf8288 > obj = {i = 140734799774347} > po = 0x7fff5fbf8288 > cdr_count = 1 > #2 0x000000010023b8fb in garbage_collect_1 (end=0x7fff5fbf69a8) at alloc.c:5760 > nextb = 0x0 > stack_top_variable = 0 '\000' > i = 201 ^^^^^^^ This is bug#24640, already fixed on the emacs-25 branch.