From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eric Hanchrow Newsgroups: gmane.emacs.bugs Subject: bug#22120: Another backtrace Date: Sun, 13 Dec 2015 18:07:43 +0000 Message-ID: References: <83io425py0.fsf@gnu.org> <83wpsi443p.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=001a1140cd06628d470526cb6f20 X-Trace: ger.gmane.org 1450030103 5106 80.91.229.3 (13 Dec 2015 18:08:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 13 Dec 2015 18:08:23 +0000 (UTC) Cc: 22120@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Dec 13 19:08:13 2015 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 1a8B46-0005tS-Ih for geb-bug-gnu-emacs@m.gmane.org; Sun, 13 Dec 2015 19:08:10 +0100 Original-Received: from localhost ([::1]:56126 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a8B45-0003m8-IE for geb-bug-gnu-emacs@m.gmane.org; Sun, 13 Dec 2015 13:08:09 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48237) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a8B42-0003lm-2x for bug-gnu-emacs@gnu.org; Sun, 13 Dec 2015 13:08:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a8B3y-0003co-T7 for bug-gnu-emacs@gnu.org; Sun, 13 Dec 2015 13:08:06 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:42829) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a8B3y-0003ck-Pe for bug-gnu-emacs@gnu.org; Sun, 13 Dec 2015 13:08:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1a8B3y-0001uh-Az for bug-gnu-emacs@gnu.org; Sun, 13 Dec 2015 13:08:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eric Hanchrow Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 13 Dec 2015 18:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 22120 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 22120-submit@debbugs.gnu.org id=B22120.14500300797347 (code B ref 22120); Sun, 13 Dec 2015 18:08:02 +0000 Original-Received: (at 22120) by debbugs.gnu.org; 13 Dec 2015 18:07:59 +0000 Original-Received: from localhost ([127.0.0.1]:50431 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1a8B3v-0001uQ-8k for submit@debbugs.gnu.org; Sun, 13 Dec 2015 13:07:59 -0500 Original-Received: from mail-io0-f179.google.com ([209.85.223.179]:35532) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1a8B3t-0001uC-O0 for 22120@debbugs.gnu.org; Sun, 13 Dec 2015 13:07:58 -0500 Original-Received: by iofq126 with SMTP id q126so13416222iof.2 for <22120@debbugs.gnu.org>; Sun, 13 Dec 2015 10:07:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-type; bh=z5iLFtIxjNflq/t9I0yrhtNsM9DRq3mZ4ZVwXM5D0C0=; b=WsHomi5lYh8ecx1ijtowH48El9I5n19SqszXAEXY3RR7TvM1uednoZyKdHLVw5JxNh Rr/yvxRcW+9Qh2ohRGBGQDsFCSAXXRLkHtnO1r4JApPhdJGXCEU9X7LTEcMmQJFpHjkq du6+B3UtHhx9TCw3jmPSsN85nUhhYuCGHLfW8V0q7K2ppCiBxU/YBoH/8Ivw59NV7q4b 1jbgfsmgxlLtClo/gI0x/DR/dlXoA1gPO4TrHYScCDohdyqNQGzUqpzh/fW1R4X7eV3q yMjKEhHJHnFJOK4Gg1ew+GaKh8CwmppO09lbuljqUlPd9aAGHqAcAG4uF46EAXsJTIZN oBWQ== X-Received: by 10.107.32.209 with SMTP id g200mr23547980iog.39.1450030072496; Sun, 13 Dec 2015 10:07:52 -0800 (PST) In-Reply-To: <83wpsi443p.fsf@gnu.org> 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:109942 Archived-At: --001a1140cd06628d470526cb6f20 Content-Type: text/plain; charset=UTF-8 I'm surprised that it is possible to cause a segfault from lisp. Is that an indication of a problem in the core C code, or is that just the way things are? On Sun, Dec 13, 2015 at 10:04 AM Eli Zaretskii wrote: > > From: Eric Hanchrow > > Date: Sun, 13 Dec 2015 17:54:04 +0000 > > Cc: 22120@debbugs.gnu.org > > > > Looks like another reincarnation of bug#21667. > > > > http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21667 appears to be > unrelated to > > this one. I suspect you made a typo. > > Sorry, I meant 21666. > > > Can you modify lui-adjust-undo-list so that GC is inhibited (by > > binding gc-cons-threshold to most-positive-fixnum around the whole > > function)? > > > > OK, I've done that. If that works, it'll take days of use before I'm > confident > > that it did work (because the bug only appears once every few days); can > you > > think of some sort of debug message I can stick in there that can tell > us that > > you've correctly guessed the cause? > > No, I don't think it's possible, not during GC anyway. > > There's no hurry, so waiting for this to happen is fine. Thanks. > --001a1140cd06628d470526cb6f20 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I'm surprised that it is possible to cause a segfault = from lisp.=C2=A0 Is that an indication of a problem in the core C code, or = is that just the way things are?

On Sun, Dec 13, 2015 at 10:04 AM Eli Zaretskii <eliz@gnu.org> wrote:
> From: Eric Hanchrow <eric.hanchrow@gmail.com>
> Date: Sun, 13 Dec 2015 17:54:04 +0000
> Cc: 22120@d= ebbugs.gnu.org
>
>=C2=A0 =C2=A0 =C2=A0Looks like another reincarnation of bug#21667.
>
> http://debbugs.gnu.org/cgi/bugreport.cgi?= bug=3D21667 appears to be unrelated to
> this one. I suspect you made a typo.

Sorry, I meant 21666.

>=C2=A0 =C2=A0 =C2=A0Can you modify lui-adjust-undo-list so that GC is i= nhibited (by
>=C2=A0 =C2=A0 =C2=A0binding gc-cons-threshold to most-positive-fixnum a= round the whole
>=C2=A0 =C2=A0 =C2=A0function)?
>
> OK, I've done that. If that works, it'll take days of use befo= re I'm confident
> that it did work (because the bug only appears once every few days); c= an you
> think of some sort of debug message I can stick in there that can tell= us that
> you've correctly guessed the cause?

No, I don't think it's possible, not during GC anyway.

There's no hurry, so waiting for this to happen is fine.=C2=A0 Thanks.<= br>
--001a1140cd06628d470526cb6f20--