From: "Aneesh Kumar K.V" Subject: Re: Soft lockups in mballoc code Date: Thu, 15 May 2008 15:08:06 +0530 Message-ID: <20080515093806.GA23507@skywalker> References: <25037.1210612895@alphaville.zko.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Nick Dokos Return-path: Received: from e28smtp03.in.ibm.com ([59.145.155.3]:51210 "EHLO e28smtp03.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751803AbYEOJi1 (ORCPT ); Thu, 15 May 2008 05:38:27 -0400 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by e28smtp03.in.ibm.com (8.13.1/8.13.1) with ESMTP id m4F9cAmY025491 for ; Thu, 15 May 2008 15:08:10 +0530 Received: from d28av05.in.ibm.com (d28av05.in.ibm.com [9.184.220.67]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m4F9c0Ro888844 for ; Thu, 15 May 2008 15:08:00 +0530 Received: from d28av05.in.ibm.com (loopback [127.0.0.1]) by d28av05.in.ibm.com (8.13.1/8.13.3) with ESMTP id m4F9cAwJ000747 for ; Thu, 15 May 2008 15:08:10 +0530 Content-Disposition: inline In-Reply-To: <25037.1210612895@alphaville.zko.hp.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Mon, May 12, 2008 at 01:21:35PM -0400, Nick Dokos wrote: > I keep getting soft lockups in mballoc code, running fsstress. > I'm running a 2.6.25.2 kernel, with 1.40.8 e2fsprogs. Here > is sample console output on a 2-cpu Opteron box with a 2Tb filesystem - > the two stack traces keep repeating every minute or so and the only > way to get out is to reset the box: What is the block size with which the file system is created. I would also suggest testing with the latest kernel and see if you can reproduce the same. While testing with the latest kernel please also use the below patch. http://repo.or.cz/w/ext4-patch-queue.git?a=blob;f=ext4-mballoc-fix-mb-_nornalize_request-for-1K-blksz.patch;h=f7b91a6186b7b469ad798ddc95e76ece69b47c24;hb=HEAD -aneesh