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 p8LGmYjn159064 for ; Wed, 21 Sep 2011 11:48:35 -0500 Received: from server655-han.de-nserver.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 324F817F311 for ; Wed, 21 Sep 2011 09:48:32 -0700 (PDT) Received: from server655-han.de-nserver.de (server655-han.de-nserver.de [85.158.177.45]) by cuda.sgi.com with ESMTP id wr0eShTxH5YiHv9F for ; Wed, 21 Sep 2011 09:48:32 -0700 (PDT) Message-ID: <4E7A155D.9060703@profihost.ag> Date: Wed, 21 Sep 2011 18:48:29 +0200 From: Stefan Priebe - Profihost AG MIME-Version: 1.0 Subject: Re: [xfs-masters] xfs deadlock in stable kernel 3.0.4 References: <20110918230245.GF15688@dastard> <4E78665E.8030409@profihost.ag> <20110920160226.GA25542@infradead.org> <4E78CBF4.1030505@profihost.ag> <20110920172455.GA30757@infradead.org> <4E78CEFD.9030603@profihost.ag> <20110920223047.GA13758@infradead.org> <20110921021133.GM15688@dastard> <4E7994D3.5020103@profihost.ag> <20110921114237.GP15688@dastard> <20110921122649.GA16602@infradead.org> In-Reply-To: <20110921122649.GA16602@infradead.org> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Christoph Hellwig Cc: "xfs@oss.sgi.com" Hi, Am 21.09.2011 14:26, schrieb Christoph Hellwig: > What is also strange is that we allocate a xfs_ail_wq, but don't > actually use it, although it would have the same idea. Stefan, > can you try the following patch? This moves the ail work to it's > explicit queue, and makes sure we never have the same work item > (= same fs to be pushed) concurrently. Sorry, but with your patch everything is awfully slow. Just the sequ. file creation takes on an SSD extremely long. I interrupted the test. i/o top from an SSD: Total DISK READ: 0 B/s | Total DISK WRITE: 9.88 M/s PID USER DISK READ DISK WRITE SWAPIN IO> COMMAND 1377 root 0 B/s 0 B/s 0.00 % 99.99 % [xfsbufd/sda3] 2219 root 0 B/s 0 B/s 0.00 % 99.99 % [flush-8:0] 2746 root 0 B/s 9.88 M/s 0.00 % 0.00 % bonnie++ -u root -s 0 -n 1024:32768:0:1024:4096 -d /mnt Stefan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs