From: Austin Clements Date: Wed, 12 Jun 2013 17:10:05 +0000 (+2000) Subject: Re: notmuch zombie apocolypse X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=995bb0a9de8bee8d65fde63e98de3ecba643af4b;p=notmuch-archives.git Re: notmuch zombie apocolypse --- diff --git a/91/ffd354bfcee5f309f7896bce5781ec1b3c82d2 b/91/ffd354bfcee5f309f7896bce5781ec1b3c82d2 new file mode 100644 index 000000000..062377173 --- /dev/null +++ b/91/ffd354bfcee5f309f7896bce5781ec1b3c82d2 @@ -0,0 +1,119 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by olra.theworths.org (Postfix) with ESMTP id 16B67431FC2 + for ; Wed, 12 Jun 2013 10:10:26 -0700 (PDT) +X-Virus-Scanned: Debian amavisd-new at olra.theworths.org +X-Spam-Flag: NO +X-Spam-Score: -0.7 +X-Spam-Level: +X-Spam-Status: No, score=-0.7 tagged_above=-999 required=5 + tests=[RCVD_IN_DNSWL_LOW=-0.7] autolearn=disabled +Received: from olra.theworths.org ([127.0.0.1]) + by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id FvZkX2gWPDFG for ; + Wed, 12 Jun 2013 10:10:18 -0700 (PDT) +Received: from dmz-mailsec-scanner-1.mit.edu (dmz-mailsec-scanner-1.mit.edu + [18.9.25.12]) + by olra.theworths.org (Postfix) with ESMTP id 240AB431FBC + for ; Wed, 12 Jun 2013 10:10:18 -0700 (PDT) +X-AuditID: 1209190c-b7f026d000006c21-f5-51b8ab799b39 +Received: from mailhub-auth-1.mit.edu ( [18.9.21.35]) + by dmz-mailsec-scanner-1.mit.edu (Symantec Messaging Gateway) with SMTP + id B4.C3.27681.97BA8B15; Wed, 12 Jun 2013 13:10:17 -0400 (EDT) +Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) + by mailhub-auth-1.mit.edu (8.13.8/8.9.2) with ESMTP id r5CHAGE7019650; + Wed, 12 Jun 2013 13:10:17 -0400 +Received: from awakening.csail.mit.edu (awakening.csail.mit.edu [18.26.4.91]) + (authenticated bits=0) + (User authenticated as amdragon@ATHENA.MIT.EDU) + by outgoing.mit.edu (8.13.8/8.12.4) with ESMTP id r5CHADHV005363 + (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); + Wed, 12 Jun 2013 13:10:15 -0400 +Received: from amthrax by awakening.csail.mit.edu with local (Exim 4.80) + (envelope-from ) + id 1UmoYg-0008QE-CA; Wed, 12 Jun 2013 13:10:08 -0400 +Date: Wed, 12 Jun 2013 13:10:05 -0400 +From: Austin Clements +To: David Bremner +Subject: Re: notmuch zombie apocolypse +Message-ID: <20130612171004.GG22196@mit.edu> +References: <87txl4glmv.fsf@maritornes.cs.unb.ca> +MIME-Version: 1.0 +Content-Type: text/plain; charset=us-ascii +Content-Disposition: inline +In-Reply-To: <87txl4glmv.fsf@maritornes.cs.unb.ca> +User-Agent: Mutt/1.5.21 (2010-09-15) +X-Brightmail-Tracker: + H4sIAAAAAAAAA+NgFmphleLIzCtJLcpLzFFi42IR4hRV1q1cvSPQ4PALXYsbrd2MFtdvzmR2 + YPJ4tuoWs8eWQ++ZA5iiuGxSUnMyy1KL9O0SuDKWXH7FVHCJt6Lx533WBsY27i5GTg4JAROJ + /T82sEDYYhIX7q1n62Lk4hAS2Mco8fX6f3YIZyOjRNeTiawQzmkmiZUnN0M5SxglHrQ8Aetn + EVCV2LDkEpjNJqAhsW3/ckYQWwQofnXbZDYQmxnIblx7kRnEFhZQk1jQ3AxWzyugI7G9fRYr + iC0kYCjR9LYHKi4ocXImxHxmAS2JG/9eMnUxcgDZ0hLL/3GAhDkFjCQ+tq0HKxEVUJGYcnIb + 2wRGoVlIumch6Z6F0L2AkXkVo2xKbpVubmJmTnFqsm5xcmJeXmqRrqFebmaJXmpK6SZGcGBL + 8uxgfHNQ6RCjAAejEg/vi9YdgUKsiWXFlbmHGCU5mJREeXVXAIX4kvJTKjMSizPii0pzUosP + MUpwMCuJ8DpMAMrxpiRWVqUW5cOkpDlYlMR5L6fc9BcSSE8sSc1OTS1ILYLJynBwKEnwzloF + 1ChYlJqeWpGWmVOCkGbi4AQZzgM0fD9IDW9xQWJucWY6RP4Uo6KUOG8zSEIAJJFRmgfXC0s8 + rxjFgV4R5l0KUsUDTFpw3a+ABjMBDS7K2A4yuCQRISXVwLjqQJNp8be7iU/XSn+plhV5G/mn + bp/m+8XtysfOcugf29eoY+6wcL2WV+SVruu6+xq2hr44Yvd6zqljxu08/wzWS9hfvb9gIcdn + t4QNmStCMh5ud98gz++4bnFt5vGVgsvdcw86cwdUN3JMTU6btu+gja1of9eLdxtqYpwrA0Vf + 8fssUFnzpF6JpTgj0VCLuag4EQAlZabXFwMAAA== +Cc: notmuch +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.13 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Wed, 12 Jun 2013 17:10:26 -0000 + +TL;DR: This is a bug caused by GTK Emacs 24 and recent glib +(introduced somewhere between 2.33.12 and 2.36.1) when there's no +D-BUS session daemon running. It was "fixed" in Emacs git two weeks +ago, but you can temporarily work around the problem by running DBUS +or by exporting GSETTINGS_BACKEND=memory. + +Quoth David Bremner on Jun 12 at 10:31 am: +> +> Hi All; +> +> I've noticed some strange behaviour with zombie processes and +> notmuch-emacs. +> +> * 0.15.2 +> - start large search, quit (with q) +> - zombie is created +> - repeat as many times as you like. +> - first search to complete, all zombies are gone. +> - CPU is not pegged. +> +> * 0.15.2+174 +> - even searches that complete create zombies +> - cpu usage of emacs process hits 100% +> +> Defining the former as "good" and the latter as "bad", +> bisect reveals 08fde50bf3a4c5 as the first "bad" commit. +> +> I am running emacs 24.3.1 on Debian jessie, with linux kernel 3.9.5-1 +> from unstable. +> +> The bug is pretty annoying since it runs down the battery on my +> laptop. In a quick test on another machine running Debian wheezy but +> still emacs 24.3.1, I don't see any zombies created at all. I'm not sure +> what the imprtant variable is, libc, glib, kernel... + +This is Emacs bug #14474: + http://lists.gnu.org/archive/html/bug-gnu-emacs/2013-05/msg00705.html + http://lists.gnu.org/archive/html/bug-gnu-emacs/2013-06/msg00002.html +Paul Eggert found the same cause that David and I painstakingly +tracked down over IRC: + http://lists.gnu.org/archive/html/bug-gnu-emacs/2013-05/msg00726.html +This workaround was committed to Emacs git master on May 30th in 8dea8fe0: + http://lists.gnu.org/archive/html/bug-gnu-emacs/2013-05/msg00752.html