From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932354AbWGLWz5 (ORCPT ); Wed, 12 Jul 2006 18:55:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932424AbWGLWz5 (ORCPT ); Wed, 12 Jul 2006 18:55:57 -0400 Received: from py-out-1112.google.com ([64.233.166.180]:35174 "EHLO py-out-1112.google.com") by vger.kernel.org with ESMTP id S932354AbWGLWz4 (ORCPT ); Wed, 12 Jul 2006 18:55:56 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=gFdr/s8LV5pcYQC8QFxz71/rArtx/qM5JrpUARVBstBxKC+DTEbo7seXMAlRdLKl/yQBbaxGcpKIBC6+2zlKbdobHVZrQYhkbmZ3hXPkiOGRD8C2CzrG+z32pmekBNzKLipu2s23dyAVfdzBDvQ9J0aPloZ85lEhDjQQz5lQ27s= Message-ID: <6bffcb0e0607121555n20a9df53q8589109024629f7a@mail.gmail.com> Date: Thu, 13 Jul 2006 00:55:55 +0200 From: "Michal Piotrowski" To: "Catalin Marinas" Subject: Re: [PATCH 00/10] Kernel memory leak detector 0.8 Cc: linux-kernel@vger.kernel.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20060710220901.5191.66488.stgit@localhost.localdomain> <6bffcb0e0607110802w4f423854rb340227331084596@mail.gmail.com> <6bffcb0e0607110902u4e24a4f2jc6acf2eb4c3bae93@mail.gmail.com> <6bffcb0e0607111000q228673a9kcbc6c91f76331885@mail.gmail.com> <6bffcb0e0607120435x31eceab7r3fdb055a7bee6da2@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 12/07/06, Catalin Marinas wrote: > On 12/07/06, Michal Piotrowski wrote: > > BTW I have _very_ annoying soft lockup. Can you fix that? > > > > Jul 12 13:15:47 ltg01-fedora kernel: printk: 1527 messages suppressed. > > Jul 12 13:15:47 ltg01-fedora kernel: ipt_hook: happy cracking. > > Jul 12 13:15:56 ltg01-fedora kernel: printk: 1631 messages suppressed. > > Jul 12 13:15:56 ltg01-fedora kernel: Neighbour table overflow. > > > > I don't know why, but clock goes mad. > > > > Jul 12 14:08:21 ltg01-fedora kernel: BUG: soft lockup detected on CPU#0! > > Maybe the soft lockup report is cause by the clock change (it doesn't > show any kmemleak functions in the backtrace). I can't reproduce this on clean 2.6.18-rc1. > You could change > SCAN_BLOCK_SIZE in memleak.c to a smaller value as the scanning is > done with the interrupt disabled. I have tried #define SCAN_BLOCK_SIZE 2048 and #define SCAN_BLOCK_SIZE 1024 Unfortunately it doesn't change anything. > I'll try tomorrow on my platforms with the soft lockup enabled. Please try something like this on tty1 isic -s rand -d your ip (http://www.packetfactory.net/Projects/ISIC/) on tty2 kml_collector (http://www.stardust.webpages.pl/files/o_bugs/kml/ml/kml_collector.sh) (I have tried to read random files from /sys on vanilla kernel, but I can't reproduce that lockup) > > -- > Catalin > Regards, Michal -- Michal K. K. Piotrowski LTG - Linux Testers Group (http://www.stardust.webpages.pl/ltg/wiki/)