From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Nix Newsgroups: gmane.emacs.bugs Subject: bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel Date: Mon, 30 Jan 2012 21:39:36 +0000 Message-ID: <87lioo50pz.fsf@spindle.srvr.nix> References: <87ehumm6jt.fsf@spindle.srvr.nix> <83pqe5zfd6.fsf@gnu.org> <87vcnt5a7v.fsf@spindle.srvr.nix> <83r4yhqagl.fsf@gnu.org> <87wr893szo.fsf@spindle.srvr.nix> <83lioorj6v.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1327959604 13098 80.91.229.3 (30 Jan 2012 21:40:04 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 30 Jan 2012 21:40:04 +0000 (UTC) Cc: 10617@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Jan 30 22:40:03 2012 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RryxH-0003yP-3U for geb-bug-gnu-emacs@m.gmane.org; Mon, 30 Jan 2012 22:40:03 +0100 Original-Received: from localhost ([::1]:39524 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RryxG-0003sH-DX for geb-bug-gnu-emacs@m.gmane.org; Mon, 30 Jan 2012 16:40:02 -0500 Original-Received: from eggs.gnu.org ([140.186.70.92]:52570) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rryx9-0003rE-Sk for bug-gnu-emacs@gnu.org; Mon, 30 Jan 2012 16:39:59 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Rryx4-0005xV-UV for bug-gnu-emacs@gnu.org; Mon, 30 Jan 2012 16:39:55 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:42077) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rryx4-0005xP-PQ for bug-gnu-emacs@gnu.org; Mon, 30 Jan 2012 16:39:50 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1RryxG-00060D-47 for bug-gnu-emacs@gnu.org; Mon, 30 Jan 2012 16:40:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Nix Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 30 Jan 2012 21:40:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 10617 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 10617-submit@debbugs.gnu.org id=B10617.132795960023061 (code B ref 10617); Mon, 30 Jan 2012 21:40:01 +0000 Original-Received: (at 10617) by debbugs.gnu.org; 30 Jan 2012 21:39:59 +0000 Original-Received: from localhost ([127.0.0.1]:45700 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Rryx9-0005zm-Ie for submit@debbugs.gnu.org; Mon, 30 Jan 2012 16:39:59 -0500 Original-Received: from icebox.esperi.org.uk ([81.187.191.129]:45256 helo=mail.esperi.org.uk ident=root) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Rryx3-0005zU-P0 for 10617@debbugs.gnu.org; Mon, 30 Jan 2012 16:39:51 -0500 Original-Received: from esperi.org.uk (nix@spindle.srvr.nix [192.168.14.15]) by mail.esperi.org.uk (8.14.5/8.14.5) with ESMTP id q0ULda1G032320; Mon, 30 Jan 2012 21:39:36 GMT Original-Received: (from nix@localhost) by esperi.org.uk (8.14.5/8.14.5/Submit) id q0ULda9o007786; Mon, 30 Jan 2012 21:39:36 GMT Emacs: the definitive fritterware. In-Reply-To: <83lioorj6v.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 30 Jan 2012 23:09:44 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.92 (gnu/linux) X-DCC-URT-Metrics: spindle 1060; Body=2 Fuz1=2 Fuz2=2 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 (newer, 2) 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:56258 Archived-At: On 30 Jan 2012, Eli Zaretskii stated: >> From: Nix >> >> (gdb) print it->string >> >> $6 = 12065314 >> > >> > What does "xtype" say about this string? If it says Lisp_String, what >> > does "xstring" say? >> >> (gdb) xtype >> Lisp_Symbol >> (gdb) xstring >> $2 = (struct Lisp_String *) 0xb81a20 >> There is no member named data. >> >> Not very useful. > > It's a symbol (see above), not a string, so using "xstring" with it is > not useful. Try "xsymbol" (I'm guessing it's nil). Oh, how... obvious. I shouldn't respond to these when exhausted. Ooo: (gdb) xsymbol it->string $2 = (struct Lisp_Symbol *) 0xb81a20 There is no member named data. (gdb) print *((struct Lisp_Symbol *) 0xb81a20) $3 = { gcmarkbit = 0, redirect = SYMBOL_PLAINVAL, constant = 1, interned = 2, declared_special = 0, xname = 8697697, val = { value = 12065314, alias = 0xb81a22, blv = 0xb81a22, fwd = 0xb81a22 }, function = 12065266, plist = 38661286, next = 0x0 } (gdb) print/x Qnil $6 = 0xb81a22 So this is clearly actually a forwarded or buffer-localized nil variable, but redirect has become corrupted so that Emacs thinks, incorrectly, that it's a value. Right?