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#12911: 24.3.50; let users decide where (& perhaps whether) `emacs_backtrace.txt' files are written Date: Tue, 20 Nov 2012 20:37:15 +0200 Message-ID: <83a9ucw278.fsf@gnu.org> References: <83wqxk3d1z.fsf@gnu.org> <83y5hyxnb1.fsf@gnu.org> <83wqxhy4ha.fsf@gnu.org> <83fw45xxzk.fsf@gnu.org> <83ehjpxwqd.fsf@gnu.org> <838v9xxss8.fsf@gnu.org> <83zk2dvsba.fsf@gnu.org> <50AB0EDE.40109@dancol.org> <83r4now6jk.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1353436688 1139 80.91.229.3 (20 Nov 2012 18:38:08 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 20 Nov 2012 18:38:08 +0000 (UTC) Cc: 12911@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Nov 20 19:38:17 2012 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 1Tasi1-0004nS-ES for geb-bug-gnu-emacs@m.gmane.org; Tue, 20 Nov 2012 19:38:09 +0100 Original-Received: from localhost ([::1]:46357 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tashr-0005L1-2Z for geb-bug-gnu-emacs@m.gmane.org; Tue, 20 Nov 2012 13:37:59 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:52705) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tashl-0005Kt-Jh for bug-gnu-emacs@gnu.org; Tue, 20 Nov 2012 13:37:57 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Tashk-00081x-9s for bug-gnu-emacs@gnu.org; Tue, 20 Nov 2012 13:37:53 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:47013) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tashk-00081n-6K for bug-gnu-emacs@gnu.org; Tue, 20 Nov 2012 13:37:52 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1Tasis-0008Vr-1X for bug-gnu-emacs@gnu.org; Tue, 20 Nov 2012 13:39:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 20 Nov 2012 18:39:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 12911 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: wontfix Original-Received: via spool by 12911-submit@debbugs.gnu.org id=B12911.135343673232707 (code B ref 12911); Tue, 20 Nov 2012 18:39:02 +0000 Original-Received: (at 12911) by debbugs.gnu.org; 20 Nov 2012 18:38:52 +0000 Original-Received: from localhost ([127.0.0.1]:57264 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Tasih-0008VT-RY for submit@debbugs.gnu.org; Tue, 20 Nov 2012 13:38:52 -0500 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:48034) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Tasie-0008VK-Vp for 12911@debbugs.gnu.org; Tue, 20 Nov 2012 13:38:49 -0500 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0MDS00700U046U00@a-mtaout22.012.net.il> for 12911@debbugs.gnu.org; Tue, 20 Nov 2012 20:37:37 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MDS007FJUEN4530@a-mtaout22.012.net.il>; Tue, 20 Nov 2012 20:37:35 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il 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.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:67230 Archived-At: > From: Stefan Monnier > Cc: Daniel Colascione , 12911@debbugs.gnu.org > Date: Tue, 20 Nov 2012 13:30:52 -0500 > > > Accessing environment variables is another problematic place. We are > > crashing, so the heap or the whole arena can be trashed. Who can be > > sure the environment variables will not point to garbled places? > > Just to put things in perspective: this backtrace "feature" was put in > to replace/supplement the previous assertion failure output (because > with asserts now being inside inlinable functions, the line&file info > we get is not the one we want any more). So the environment is usually > still pretty sane, because assertions are usually caught fairly early. If the backtrace is created due to assertion violation, yes. But it is also invoked for all the other fatal signals.