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#18851: 24.4; emacs cannot be started if the current directory has been removed Date: Wed, 29 Oct 2014 18:00:23 +0200 Message-ID: <83egtq27e0.fsf@gnu.org> References: <87h9ypiqmm.fsf@xvii.vinc17.org> <8k61f398u4.fsf@fencepost.gnu.org> <20141029012802.GS4400@xvii.vinc17.org> <83y4rz1qmj.fsf@gnu.org> <20141029080939.GT4400@xvii.vinc17.org> <83sii70xb7.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1414598498 3322 80.91.229.3 (29 Oct 2014 16:01:38 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Oct 2014 16:01:38 +0000 (UTC) Cc: vincent@vinc17.net, 18851@debbugs.gnu.org To: Andreas Schwab Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 29 17:01:30 2014 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 1XjVgc-0007QT-0a for geb-bug-gnu-emacs@m.gmane.org; Wed, 29 Oct 2014 17:01:26 +0100 Original-Received: from localhost ([::1]:47104 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XjVgb-0003wq-JE for geb-bug-gnu-emacs@m.gmane.org; Wed, 29 Oct 2014 12:01:25 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:43660) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XjVgL-0003gK-W7 for bug-gnu-emacs@gnu.org; Wed, 29 Oct 2014 12:01:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XjVgE-00048f-Gt for bug-gnu-emacs@gnu.org; Wed, 29 Oct 2014 12:01:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:46848) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XjVgE-00048V-DR for bug-gnu-emacs@gnu.org; Wed, 29 Oct 2014 12:01:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XjVgD-00056U-RN for bug-gnu-emacs@gnu.org; Wed, 29 Oct 2014 12:01:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 29 Oct 2014 16:01:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18851 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18851-submit@debbugs.gnu.org id=B18851.141459844018046 (code B ref 18851); Wed, 29 Oct 2014 16:01:01 +0000 Original-Received: (at 18851) by debbugs.gnu.org; 29 Oct 2014 16:00:40 +0000 Original-Received: from localhost ([127.0.0.1]:38946 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XjVfq-0004fH-A5 for submit@debbugs.gnu.org; Wed, 29 Oct 2014 12:00:39 -0400 Original-Received: from mtaout21.012.net.il ([80.179.55.169]:53736) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XjVfm-0004U4-Iw for 18851@debbugs.gnu.org; Wed, 29 Oct 2014 12:00:36 -0400 Original-Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0NE700K00R1WXM00@a-mtaout21.012.net.il> for 18851@debbugs.gnu.org; Wed, 29 Oct 2014 18:00:27 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NE700KVUR4RW340@a-mtaout21.012.net.il>; Wed, 29 Oct 2014 18:00:27 +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:95254 > From: Andreas Schwab > Cc: Vincent Lefevre , 18851@debbugs.gnu.org > Date: Wed, 29 Oct 2014 16:39:22 +0100 > > > AFAIK, GNU/Linux does the former. The directory is not physically > > removed until the last process that has an open file descriptor for it > > closes that descriptor. Any attempts to reference that directory for > > obtaining a new descriptor will get ENOENT, i.e. the OS pretends that > > the directory doesn't exist. But existing descriptors are valid, and > > can be used as usual. > > "As usual" is an exaggeration. Basically the only valid operations on > it are fstat and fchdir. Any attempt at adding an entry to it (via > openat) will be rejected. Yes, any attempt to add descriptors will fail. By "as usual" I meant using the descriptor to extract information, like fstat, readdir, etc.