From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e35.co.us.ibm.com (8.12.10/8.12.9) with ESMTP id j5ML3AtC248462 for ; Wed, 22 Jun 2005 17:03:10 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay04.boulder.ibm.com (8.12.10/NCO/VER6.6) with ESMTP id j5ML398X182054 for ; Wed, 22 Jun 2005 15:03:09 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11/8.13.3) with ESMTP id j5ML39w5031523 for ; Wed, 22 Jun 2005 15:03:09 -0600 Subject: Re: 2.6.12-mm1 & 2K lun testing (JFS problem ?) From: Badari Pulavarty In-Reply-To: <1119448252.9262.12.camel@localhost> References: <1118856977.4301.406.camel@dyn9047017072.beaverton.ibm.com> <20050616002451.01f7e9ed.akpm@osdl.org> <1118951458.4301.478.camel@dyn9047017072.beaverton.ibm.com> <20050616133730.1924fca3.akpm@osdl.org> <1118965381.4301.488.camel@dyn9047017072.beaverton.ibm.com> <20050616175130.22572451.akpm@osdl.org> <42B2E7D2.9080705@us.ibm.com> <20050617141331.078e5f8f.akpm@osdl.org> <1119400494.4620.33.camel@dyn9047017102.beaverton.ibm.com> <1119448252.9262.12.camel@localhost> Content-Type: text/plain Date: Wed, 22 Jun 2005 14:02:26 -0700 Message-Id: <1119474166.13376.10.camel@dyn9047017102.beaverton.ibm.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Dave Kleikamp Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Wed, 2005-06-22 at 08:50 -0500, Dave Kleikamp wrote: > > But, I am running into JFS problem. I can't kill my > > "dd" process. > > Assuming you built the kernel with CONFIG_JFS_STATISTICS, can you send > me the contents of /proc/fs/jfs/txstats? Reproduced the problem. Here are the stats.. JFS TxStats =========== calls to txBegin = 26783 txBegin blocked by sync barrier = 0 txBegin blocked by tlocks low = 0 txBegin blocked by no free tid = 930528 calls to txBeginAnon = 8700659 txBeginAnon blocked by sync barrier = 0 txBeginAnon blocked by tlocks low = 0 calls to txLockAlloc = 50601 tLockAlloc blocked by no free lock = 0 > Looks like txBegin is the problem. Probably ran out of txBlocks. Maybe > a stack trace of jfsCommit, jfsIO, and jfsSync threads might be useful > too. I don't see the stacks for these jfs threads in the sysrq-t output. I wonder why sysrq-t is skipping them. Any Idea ? elm3b29:/proc/sys/fs # ps -aef | grep -i jfs root 174 1 0 02:11 ? 00:00:00 [jfsIO] root 175 1 0 02:11 ? 00:00:01 [jfsCommit] root 176 1 0 02:11 ? 00:00:01 [jfsCommit] root 177 1 0 02:11 ? 00:00:02 [jfsCommit] root 178 1 0 02:11 ? 00:00:02 [jfsCommit] root 179 1 0 02:11 ? 00:00:00 [jfsSync] root 7200 7759 0 05:54 pts/1 00:00:00 grep -i jfs Thanks, Badari -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org