From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q3UAX4ba239703 for ; Mon, 30 Apr 2012 05:33:05 -0500 Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id COvx4mDikD4ZBYaI for ; Mon, 30 Apr 2012 03:33:02 -0700 (PDT) Date: Mon, 30 Apr 2012 20:32:59 +1000 From: Dave Chinner Subject: Re: Kernel 3.0.30 hang in xfs_submit_ioend_bio Message-ID: <20120430103259.GK7015@dastard> References: <4F9E4874.8050505@profihost.ag> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4F9E4874.8050505@profihost.ag> 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 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Stefan Priebe Cc: Christoph Hellwig , gregkh@linuxfoundation.org, stable@vger.kernel.org, "xfs@oss.sgi.com" On Mon, Apr 30, 2012 at 10:08:20AM +0200, Stefan Priebe wrote: > Hi, > > while running several systems with 3.0.30 i'm seeing this call trace > pretty often. Is this problem known? > > [925680.203973] Call Trace: > [925680.204170] [] schedule+0x30/0x50 > [925680.204221] [] io_schedule+0x71/0xb0 > [925680.204273] [] get_request_wait+0xa0/0x150 > [925680.204376] [] __make_request+0xf6/0x280 > [925680.204427] [] generic_make_request+0x3fd/0x610 > [925680.204741] [] submit_bio+0x6a/0x100 > [925680.204894] [] xfs_submit_ioend_bio+0x47/0x70 > [925680.204946] [] xfs_submit_ioend+0xd4/0xe0 > [925680.204998] [] xfs_vm_writepage+0x253/0x580 > [925680.205109] [] shrink_page_list+0x55a/0x750 > [925680.205162] [] shrink_inactive_list+0x1a0/0x350 > [925680.205214] [] shrink_zone+0x411/0x570 > [925680.205265] [] kswapd+0x57e/0x9c0 kswapd is blocking submitting IO - the request queue is full. I'd say you've got memory pressure, lots of dirty pages and an IO subsystem that can't keep up.... Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs