From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8F2F07F8C for ; Tue, 12 Feb 2013 16:21:57 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7C24D304043 for ; Tue, 12 Feb 2013 14:21:54 -0800 (PST) Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id GLDg22XiFzPXAHe8 for ; Tue, 12 Feb 2013 14:21:53 -0800 (PST) Date: Wed, 13 Feb 2013 09:21:50 +1100 From: Dave Chinner Subject: Re: Hung in D state during fclose Message-ID: <20130212222150.GE26694@dastard> References: <20130212065545.GC10731@dastard> <3542214BE3A3EF419F236DFE0F878BC90512DC@BL2PRD0310MB374.namprd03.prod.outlook.com> <20130212102014.GA26694@dastard> <3542214BE3A3EF419F236DFE0F878BC90517D2@BL2PRD0310MB374.namprd03.prod.outlook.com> <20130212202246.GB26694@dastard> <3542214BE3A3EF419F236DFE0F878BC905190D@BL2PRD0310MB374.namprd03.prod.outlook.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <3542214BE3A3EF419F236DFE0F878BC905190D@BL2PRD0310MB374.namprd03.prod.outlook.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: "Cheung, Norman" Cc: "linux-xfs@oss.sgi.com" On Tue, Feb 12, 2013 at 09:06:03PM +0000, Cheung, Norman wrote: > [NLC] Only 2 threads in D state. I need to wait for the next > hang to take another stack trace. Is there any workaround I can > reduce the frequencies of this hang. What about reducing the > xfssyncd_centisecs? Or other knobs? You need to isolate the cause of the hang before changing anything. Twiddling random knobs won't improve the situation. Understand the problem first, then take appropriate action. > [NLC] 2 RAID controllers in the system, it hung from disks on > both of them. One is SuperMicro 2208 and the other is LSI > 9265-8I. I think both use the same chipset. Does the filesystem that hangs always belong to the same controller? Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs