From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#23233: 25.0.92; Crash after doing much work in Proof General Date: Thu, 07 Apr 2016 05:45:13 +0300 Message-ID: <83pou2kuh2.fsf@gnu.org> References: <83twjeldr6.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1459997187 12448 80.91.229.3 (7 Apr 2016 02:46:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 7 Apr 2016 02:46:27 +0000 (UTC) Cc: 23233@debbugs.gnu.org To: Lars Magne Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Apr 07 04:46:18 2016 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 1anzxZ-000851-Lw for geb-bug-gnu-emacs@m.gmane.org; Thu, 07 Apr 2016 04:46:17 +0200 Original-Received: from localhost ([::1]:47064 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1anzxV-0003BT-PG for geb-bug-gnu-emacs@m.gmane.org; Wed, 06 Apr 2016 22:46:13 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45879) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1anzxO-00034A-Tb for bug-gnu-emacs@gnu.org; Wed, 06 Apr 2016 22:46:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1anzxJ-0001gj-UR for bug-gnu-emacs@gnu.org; Wed, 06 Apr 2016 22:46:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:39962) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1anzxJ-0001gf-Qp for bug-gnu-emacs@gnu.org; Wed, 06 Apr 2016 22:46:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1anzxJ-0004Lz-MG for bug-gnu-emacs@gnu.org; Wed, 06 Apr 2016 22:46:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 07 Apr 2016 02:46:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 23233 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 23233-submit@debbugs.gnu.org id=B23233.145999715016718 (code B ref 23233); Thu, 07 Apr 2016 02:46:01 +0000 Original-Received: (at 23233) by debbugs.gnu.org; 7 Apr 2016 02:45:50 +0000 Original-Received: from localhost ([127.0.0.1]:52299 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1anzx5-0004LV-0f for submit@debbugs.gnu.org; Wed, 06 Apr 2016 22:45:50 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:54848) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1anzwz-0004LF-Rs for 23233@debbugs.gnu.org; Wed, 06 Apr 2016 22:45:45 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1anzwp-0001dB-U0 for 23233@debbugs.gnu.org; Wed, 06 Apr 2016 22:45:36 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:53673) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1anzwp-0001cs-Qh; Wed, 06 Apr 2016 22:45:31 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2581 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1anzwp-0005Bs-6x; Wed, 06 Apr 2016 22:45:31 -0400 In-reply-to: (message from Lars Magne Ingebrigtsen on Thu, 07 Apr 2016 00:13:05 +0200) 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:116146 Archived-At: > From: Lars Magne Ingebrigtsen > Date: Thu, 07 Apr 2016 00:13:05 +0200 > > Well, an infinite hook recursion still shouldn't make Emacs crash. Infinite recursion will crash any program due to stack overflow. > The backtrace reminded me a bit about the known gc recursion bug that I > can't remember the recipe for right now -- it was something about if you > (setcar foo foo), then Emacs will segfault when trying to gc? I forget > the details, but it's in the debbugs somewhere. :-) I don't think this is what happened in this case. If indeed the stack was exhausted (by having ~1000 call frames before GC started), the crash has nothing to do with GC itself, except that GC is inherently recursive.