From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758712AbXLNVdR (ORCPT ); Fri, 14 Dec 2007 16:33:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754145AbXLNVdE (ORCPT ); Fri, 14 Dec 2007 16:33:04 -0500 Received: from nz-out-0506.google.com ([64.233.162.235]:27854 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753054AbXLNVdB convert rfc822-to-8bit (ORCPT ); Fri, 14 Dec 2007 16:33:01 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=B3o5xtZPYIzs/4DApHLn9/PGAr7efQFWG4EfmVCx9n/Z6rKotbuA4OtZg/vfpT+Y9SNCFE0NWpGIPT3GCh+2LcJDhsBg1kqJTFPfpFa7KqCT8OCdktJm/zXjjJ8hDtF+/ThURxJzAZZX85wsYFIyWJ6ck4xeej1XxFA11JsFlwU= Message-ID: Date: Fri, 14 Dec 2007 19:33:00 -0200 From: Denis To: linux-kernel@vger.kernel.org Subject: Fwd: NFS , Kjournald - status D (uninterruptible sleep) - maquina lenta. In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Content-Disposition: inline References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dears, I've got a double dual xeon wich sometimes is getting too slow. While i was observing one of these slowly times, I realized the time wait of processors come close to 100% and nfsd and kjournald process become to D status (uniterruptible sleep) .Does someone know why this can be happening or how can I troubleshoot it? Below is a 'draw' of my top at one of these moments. [root@cromo src]# top top - 10:59:02 up 6 days, 19:30, 17 users, load average: 14.77, 13.46, 13.00 Tasks: 189 total, 1 running, 188 sleeping, 0 stopped, 0 zombie Cpu0 : 0.0% us, 0.4% sy, 0.0% ni, 0.2% id, 98.5% wa, 0.0% hi, 0.9% si Cpu1 : 0.0% us, 0.4% sy, 0.0% ni, 0.0% id, 99.6% wa, 0.0% hi, 0.0% si Cpu2 : 0.0% us, 0.2% sy, 0.0% ni, 7.8% id, 92.0% wa, 0.0% hi, 0.0% si Cpu3 : 0.2% us, 0.8% sy, 0.0% ni, 0.0% id, 98.7% wa, 0.2% hi, 0.0% si Mem: 4025540k total, 4018264k used, 7276k free, 7908k buffers Swap: 4096564k total, 3288k used, 4093276k free, 3553252k cached 3941 root 15 0 0 0 0 D 2 0.0 80:29.30 nfsd 3938 root 15 0 0 0 0 D 1 0.0 81:02.02 nfsd 2459 root 15 0 0 0 0 D 1 0.0 30:57.04 kjournald 3937 root 15 0 0 0 0 D 1 0.0 82:07.99 nfsd 96 root 15 0 0 0 0 S 0 0.0 34:12.48 kswapd0 3940 root 15 0 0 0 0 D 0 0.0 80:22.55 nfsd 3942 root 15 0 0 0 0 D 0 0.0 80:23.66 nfsd 3939 root 15 0 0 0 0 D 0 0.0 82:22.55 nfsd 4283 root 16 0 20936 8136 1276 S 0 0.2 0:44.47 hald 21289 denismpa 16 0 6280 1092 776 R 0 0.0 0:00.12 top 1 root 16 0 4752 552 460 S 0 0.0 0:01.28 init 2 root RT 0 0 0 0 S 0 0.0 0:00.21 migration/0 3 root 34 19 0 0 0 S 0 0.0 0:00.05 ksoftirqd/0 4 root RT 0 0 0 0 S 0 0.0 0:00.28 migration/1 5 root 34 19 0 0 0 S 0 0.0 0:00.09 ksoftirqd/1 6 root RT 0 0 0 0 S 0 0.0 0:00.15 migration/2 7 root 34 19 0 0 0 S 0 0.0 0:00.05 ksoftirqd/2 8 root RT 0 0 0 0 S 0 0.0 0:00.15 migration/3 9 root 34 19 0 0 0 S 0 0.0 0:00.06 ksoftirqd/3 10 root 5 -10 0 0 0 S 0 0.0 0:01.01 events/0 11 root 5 -10 0 0 0 S 0 0.0 0:00.11 events/1 12 root 5 -10 0 0 0 S 0 0.0 0:00.06 events/2 13 root 5 -10 0 0 0 S 0 0.0 0:00.12 events/3 14 root 5 -10 0 0 0 S 0 0.0 0:00.00 khelper 15 root 15 -10 0 0 0 S 0 0.0 0:00.00 kacpid 63 root 5 -10 0 0 0 S 0 0.0 0: 00.00 kblockd/0 64 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/1 65 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/2 66 root 5 -10 0 0 0 S 0 0.0 0: 00.00 kblockd/3 67 root 15 0 0 0 0 S 0 0.0 0:00.06 khubd 97 root 12 -10 0 0 0 S 0 0.0 0:00.00 aio/0 98 root 5 -10 0 0 0 S 0 0.0 0:00.00 aio/1 99 root 5 -10 0 0 0 S 0 0.0 0:00.00 aio/2 100 root 5 -10 0 0 0 S 0 0.0 0:00.00 aio/3 244 root 23 0 0 0 0 S 0 0.0 0:00.00 kseriod 359 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0 360 root 15 0 0 0 0 S 0 0.0 0:00.00 aacraid 379 root 5 -10 0 0 0 S 0 0.0 0:00.00 ata/0 380 root 5 -10 0 0 0 S 0 0.0 0: 00.00 ata/1 381 root 5 -10 0 0 0 S 0 0.0 0:00.00 ata/2 382 root 8 -10 0 0 0 S 0 0.0 0:00.00 ata/3 388 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1 389 root 21 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2 403 root 15 0 0 0 0 D 0 0.0 0:03.87 kjournald 1708 root 6 -10 3604 444 364 S 0 0.0 0:00.00 udevd Thanks and regards -- Denis Anjos. Cisco Certified Network Associate. Universidade Federal do ABC Santo André - SP - BR