Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754583AbYAIMFI (ORCPT ); Wed, 9 Jan 2008 07:05:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752032AbYAIME6 (ORCPT ); Wed, 9 Jan 2008 07:04:58 -0500 Received: from smtp.ustc.edu.cn ([202.38.64.16]:52794 "HELO ustc.edu.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with SMTP id S1751149AbYAIME5 (ORCPT ); Wed, 9 Jan 2008 07:04:57 -0500 Message-ID: <399880302.13852@ustc.edu.cn> X-EYOUMAIL-SMTPAUTH: wfg@mail.ustc.edu.cn Date: Wed, 9 Jan 2008 20:04:58 +0800 From: Fengguang Wu To: jplatte@naasa.net Cc: Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: regression: 100% io-wait with 2.6.24-rcX References: <200801071151.11200.lists@naasa.net> <200801071440.14798.lists@naasa.net> <399849251.21417@ustc.edu.cn> <200801090713.15655.lists@naasa.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200801090713.15655.lists@naasa.net> X-GPG-Fingerprint: 53D2 DDCE AB5C 8DC6 188B 1CB1 F766 DA34 8D8B 1C6D User-Agent: Mutt/1.5.12-2006-07-14 Message-Id: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1689 Lines: 33 On Wed, Jan 09, 2008 at 07:13:14AM +0100, Joerg Platte wrote: > Am Mittwoch, 9. Januar 2008 schrieb Fengguang Wu: > > > /dev/sda6 on / type ext3 (rw,noatime,errors=remount-ro,acl) > > > tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) > > > proc on /proc type proc (rw,noexec,nosuid,nodev) > > > sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) > > > procbususb on /proc/bus/usb type usbfs (rw) > > > udev on /dev type tmpfs (rw,mode=0755) > > > tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) > > > devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620) > > > fusectl on /sys/fs/fuse/connections type fusectl (rw) > > > /dev/sda7 on /tmp type ext2 (rw,noatime,errors=remount-ro,acl) > > > /dev/sda8 on /export type ext3 (rw,noatime,errors=remount-ro,acl) > > > /dev/sda1 on /winxp type ntfs (rw,umask=002,gid=10000,nls=utf8) > > > > So they are ext3/ext2/ntfs. What if you umount ntfs? and ext2 if possible? > > Unmounting ntfs doesn't help, hence I converted the remaining ext2 filesystem > to ext3, modified the fstab entry accordingly and rebooted. Now everything > seems to be fine! Top reports an idle system and there is no abnormal iowait > any longer! Seems to be ext2 was causing this! Later today I can try to > remount the filesystem as ext2 to be sure the bug shows up again. Thank you for the clue. However I cannot reproduce the bug on ext2/2.6.24-rc7. Can you provide more details? Thank you. Fengguang -- 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/