From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Michael Albinus Newsgroups: gmane.emacs.bugs Subject: bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X Date: Sat, 27 Feb 2016 09:00:14 +0100 Message-ID: <87twkupoq9.fsf@gmx.de> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1456560088 26708 80.91.229.3 (27 Feb 2016 08:01:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 27 Feb 2016 08:01:28 +0000 (UTC) Cc: 22814@debbugs.gnu.org To: Anders Lindgren Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Feb 27 09:01:14 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 1aZZoP-0003U8-3N for geb-bug-gnu-emacs@m.gmane.org; Sat, 27 Feb 2016 09:01:13 +0100 Original-Received: from localhost ([::1]:53751 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aZZoO-0006WB-G2 for geb-bug-gnu-emacs@m.gmane.org; Sat, 27 Feb 2016 03:01:12 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37497) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aZZoJ-0006Vt-TF for bug-gnu-emacs@gnu.org; Sat, 27 Feb 2016 03:01:08 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aZZoE-0000yt-Sk for bug-gnu-emacs@gnu.org; Sat, 27 Feb 2016 03:01:07 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:51012) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aZZoE-0000ym-OR for bug-gnu-emacs@gnu.org; Sat, 27 Feb 2016 03:01:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aZZoE-00005e-CZ for bug-gnu-emacs@gnu.org; Sat, 27 Feb 2016 03:01:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Michael Albinus Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 27 Feb 2016 08:01:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 22814 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 22814-submit@debbugs.gnu.org id=B22814.145656002430715 (code B ref 22814); Sat, 27 Feb 2016 08:01:02 +0000 Original-Received: (at 22814) by debbugs.gnu.org; 27 Feb 2016 08:00:24 +0000 Original-Received: from localhost ([127.0.0.1]:48139 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aZZnc-0007z5-71 for submit@debbugs.gnu.org; Sat, 27 Feb 2016 03:00:24 -0500 Original-Received: from mout.gmx.net ([212.227.15.18]:50178) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aZZnb-0007tQ-78 for 22814@debbugs.gnu.org; Sat, 27 Feb 2016 03:00:23 -0500 Original-Received: from detlef.gmx.de ([93.209.85.192]) by mail.gmx.com (mrgmx001) with ESMTPSA (Nemesis) id 0MOw4N-1aWWj11R71-006Kbe; Sat, 27 Feb 2016 09:00:16 +0100 In-Reply-To: (Anders Lindgren's message of "Fri, 26 Feb 2016 21:51:09 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) X-Provags-ID: V03:K0:NQdDstWRsXB+4V0Tnekx4d6Fkq3LlA/uASwGvGszHC9u6TM1LoT saUrHCHNoXoUpl1Bo9BXg+9EeLZQgbQDt4LMjIrVpBvJOz1kO4sCi84v830OrVNFRx8hqsf QgliWq+jLVdfgmejq4ejufbRG7MMJMgG2PlBS9QauCwKuStxw3n3BYcNLQFDSSY+fqVDLWy NKdiaNnRNmfOneF3HGo8A== X-UI-Out-Filterresults: notjunk:1;V01:K0:FWJ2a7nr+gA=:TDWPAQ26Gwcw0NAso4RGSv X7LLxYiqSS0oiWFHU/rP+EIrlqDwnN1dCiRC9WSMroXzvH8kMq77qPhHhBl6YZk8/ICydojSj i3PVdKBR/np3uTxCIOYWys3ls+VQxpR1d9TD35OSQtWWEYAjU+GIPCkOHLh11tb33lmsu1K9Q JUAQ/vnTwH0eHZhg49bfEckFIJSd9BF9UloR3sUfPBrf6tvrrupWwgeKazUwU9GOTJqOmNkWQ z//LSUHmEJA4n9GVQf6qu8V0ddEASq1NuiKEeVT+L5ir1JY+Cu1b6aqlH0HlXMauuzrAqwctz ZoUt421BavBida/R6dt1ryDNgUM/qJyVaMo4INvq97coaBuIYPIJ+q2IbG0A/+520p6Tm+LHC PJKlBHtAcaT2v7NgI4y+eDNJDNS+DjQ7xhuOEjaWxOhw/7kXcINeti6Nc6ji1ajGUg0JDzP6q fnnB5BdA7pNrqGb6ltE3vbYyquZCJNgGQg/EE/f9m1o1kHMe6/hNnno86UMmzHA296T+ZjtU8 OPTr2z4yLrQtwIQYQNWtrO2dKIE4esSBsAMoH3IZ0rbyMYlbWCcSW3gVp5edzzJ1daWtm8PJF NLSSmktcpmiGxfR2aSX3o6AeubEGB0/nuGPSisupUVQ/An0ueIr/SDioZb6hvcxdsKD3kwc/C JvhizegVfskaUWxY5Ta62Tc65sR/PazGML7JQ/UnEmHwyWE1k4u5a89Sve7iB+kXJz+LS1Ozf g6/pUwTkjFN7/mEMBLgDxLi29deoxCilfgOJobVy6JLMMM5skoXhaehZFRAyfLruejYaGgQP 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:113930 Archived-At: Anders Lindgren writes: > Hi! Hi Anders, >> Done. Closing the bug. > > Unfortunately, I don't think this is enough. I've reopened it, until we get an agreement. > If Emacs hangs because the file notification system runs out of > resources (file descriptors or processes), it should detect this by > itself and revert to other, safer, methods (e.g. the timer-based > system). A general support for polling in filenotify.el is not foreseen, too much effort. But I believe, in the auto-revert case Emacs works already this way. When file-notify-add-watch returns nil, auto-revert falls back to polling (to be tested, I'll I add a test). > One simple way to handle this is to define a variable with "max" > number of files the notification system can handle. We can set this > to, say, 200 on OS X and unlimited on other systems. Would be possible, yes. I would prefer to set the limit to a system related value. Does there exist a portable way to detect, how many file descriptors / processes Emacs is able to consume? > I would suggest leaving the bug open until someone figures out how to > increase the resources in OS X, or the file notification system can > handle that it runs out of resources. Done, see above. I don't know whether we want to increase the resources silently for Emacs. > -- Anders Lindgren Best regards, Michael.