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#15794: Core dump after SIGTERM during GC marking Date: Mon, 04 Nov 2013 18:02:38 +0200 Message-ID: <83y554889t.fsf@gnu.org> References: <87k3gq2dpr.fsf@igel.home> <83d2mh9ydm.fsf@gnu.org> <877gcp2wiz.fsf@igel.home> <83a9hl9sau.fsf@gnu.org> <8738nd2kig.fsf@igel.home> <83zjpk96qr.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1383580993 17295 80.91.229.3 (4 Nov 2013 16:03:13 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 4 Nov 2013 16:03:13 +0000 (UTC) Cc: 15794@debbugs.gnu.org, gundaetiapo@gmail.com To: Andreas Schwab Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Nov 04 17:03:18 2013 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 1VdMcV-0005Av-ME for geb-bug-gnu-emacs@m.gmane.org; Mon, 04 Nov 2013 17:03:15 +0100 Original-Received: from localhost ([::1]:50741 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VdMcV-0003fb-4c for geb-bug-gnu-emacs@m.gmane.org; Mon, 04 Nov 2013 11:03:15 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:42916) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VdMcN-0003fT-Kh for bug-gnu-emacs@gnu.org; Mon, 04 Nov 2013 11:03:12 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VdMcJ-0006Ol-2P for bug-gnu-emacs@gnu.org; Mon, 04 Nov 2013 11:03:07 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:48523) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VdMcI-0006Oh-Vj for bug-gnu-emacs@gnu.org; Mon, 04 Nov 2013 11:03:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VdMcI-000728-BE for bug-gnu-emacs@gnu.org; Mon, 04 Nov 2013 11:03:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 04 Nov 2013 16:03:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15794 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 15794-submit@debbugs.gnu.org id=B15794.138358097427020 (code B ref 15794); Mon, 04 Nov 2013 16:03:02 +0000 Original-Received: (at 15794) by debbugs.gnu.org; 4 Nov 2013 16:02:54 +0000 Original-Received: from localhost ([127.0.0.1]:34309 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VdMc9-00071k-Pj for submit@debbugs.gnu.org; Mon, 04 Nov 2013 11:02:54 -0500 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:62459) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VdMc5-00071R-4t for 15794@debbugs.gnu.org; Mon, 04 Nov 2013 11:02:50 -0500 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0MVQ00A00XVDOB00@a-mtaout22.012.net.il> for 15794@debbugs.gnu.org; Mon, 04 Nov 2013 18:02:42 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MVQ00AH0XWIAM70@a-mtaout22.012.net.il>; Mon, 04 Nov 2013 18:02:42 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il 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:79964 Archived-At: > From: Andreas Schwab > Cc: 15794@debbugs.gnu.org, gundaetiapo@gmail.com > Date: Mon, 04 Nov 2013 09:56:44 +0100 > > Eli Zaretskii writes: > > >> From: Andreas Schwab > >> Cc: 15794@debbugs.gnu.org, gundaetiapo@gmail.com > >> Date: Sun, 03 Nov 2013 23:22:31 +0100 > >> > >> >> Even auto-save is a no-no in a signal handler. > >> > > >> > I don't see why. Auto-save takes care to do only predictable things. > >> > >> A lot of things that are a no-no in a signal handler, like calling > >> auto-save-hook. > > > > We could disable that (and the other things) as well. > > You would have to disable opening files, too. What's wrong with opening files from a signal handler? I always thought that open(2) (and also write(2) and close(2)) are async-signal safe on Posix systems, and this page http://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html seems to agree.