Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751608AbZGaUEW (ORCPT ); Fri, 31 Jul 2009 16:04:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751515AbZGaUEV (ORCPT ); Fri, 31 Jul 2009 16:04:21 -0400 Received: from smtp.witbe.net ([81.88.96.48]:48685 "EHLO smtp.witbe.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751501AbZGaUEV (ORCPT ); Fri, 31 Jul 2009 16:04:21 -0400 Date: Fri, 31 Jul 2009 22:03:56 +0200 From: Paul Rolland To: Catalin Marinas Cc: Linux Kernel Subject: Re: 2.6.31-rc4 - slab entry tak_delay_info leaking ??? Message-ID: <20090731220356.4e5c8d0b@tux.DEF.witbe.net> In-Reply-To: References: <20090729082047.048ee1a8@tux.DEF.witbe.net> <20090730120715.65bf01ff@tux.DEF.witbe.net> <20090730122605.465d4f8b@tux.DEF.witbe.net> Organization: AS2917.net X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.2; x86_64-unknown-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2678 Lines: 63 Hi Catalin, On Thu, 30 Jul 2009 16:53:33 +0100 Catalin Marinas wrote: > Paul Rolland wrote: > >> On Wed, 29 Jul 2009 08:20:47 +0200 > >> Paul Rolland wrote: > >> > Since I'm running 2.6.31-rc? (3 or 4 I think), I often find my > >> > machine with my X session killed in the morning, and the kdm login > >> > screen displayed. > [...] > > Well, I've killed my X session, and it stopped the "leak"... but > > didn't recover the "lost" task_delay_info... > > You could try to enable CONFIG_KMEMLEAK and see if you get any leaks > reported for the "lost" task_delay_info (see Documentation/kmemleak.txt). I'm now running a kmemleak-eanbled version of the kernel, and waiting for the same problem to happen again. In the meantime, my machine is kmemleak-complaining a lot : Jul 31 20:57:35 tux kernel: kmemleak: 52 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Jul 31 21:07:41 tux kernel: kmemleak: 34 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Jul 31 21:17:47 tux kernel: kmemleak: 23 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Jul 31 21:27:54 tux kernel: kmemleak: 33 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Jul 31 21:38:01 tux kernel: kmemleak: 20 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Jul 31 21:48:07 tux kernel: kmemleak: 21 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Jul 31 21:58:15 tux kernel: kmemleak: 32 new suspected memory leaks (see /sys/kernel/debug/kmemleak) What should I do with these reports ? Is there an easy way to check if they are normal (false-positive) ? Regards, Paul -- Paul Rolland E-Mail : rol(at)witbe.net CTO - Witbe.net SA Tel. +33 (0)1 47 67 77 77 Les Collines de l'Arche Fax. +33 (0)1 47 67 77 99 F-92057 Paris La Defense RIPE : PR12-RIPE Please no HTML, I'm not a browser - Pas d'HTML, je ne suis pas un navigateur "Some people dream of success... while others wake up and work hard at it" "I worry about my child and the Internet all the time, even though she's too young to have logged on yet. Here's what I worry about. I worry that 10 or 15 years from now, she will come to me and say 'Daddy, where were you when they took freedom of the press away from the Internet?'" --Mike Godwin, Electronic Frontier Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/