From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from merit-proxy01.merit.edu ([207.75.116.193]:33722 "EHLO merit-proxy01.merit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752956Ab1HBDXX (ORCPT ); Mon, 1 Aug 2011 23:23:23 -0400 Date: Mon, 1 Aug 2011 23:23:20 -0400 From: Jim Rees To: "Myklebust, Trond" Cc: Peng Tao , "Adamson, Andy" , Christoph Hellwig , linux-nfs@vger.kernel.org, peter honeyman Subject: Re: [PATCH v4 00/27] add block layout driver to pnfs client Message-ID: <20110802032320.GA18296@merit.edu> References: <20110729185415.GA23061@merit.edu> <20110729190133.GA10946@infradead.org> <20110729191341.GC23061@merit.edu> <1311988172.16078.15.camel@lade.trondhjem.org> <20110730032621.GB25188@merit.edu> <1312233006.23392.17.camel@lade.trondhjem.org> <1312238117.23392.19.camel@lade.trondhjem.org> <20110802022144.GA18157@merit.edu> <2E1EB2CF9ED1CB4AA966F0EB76EAB4430A778575@SACMVEXC2-PRD.hq.netapp.com> Content-Type: text/plain; charset=us-ascii In-Reply-To: <2E1EB2CF9ED1CB4AA966F0EB76EAB4430A778575@SACMVEXC2-PRD.hq.netapp.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Myklebust, Trond wrote: That's a different issue. If you do an 'echo t >/proc/sysrq-trigger', then do you see any other process that is stuck in the nfs layer and that might be holding the inode->i_mutex? Hard to tell. There are a couple of possibilities. I've put the console output here, and will investigate more in the morning: http://www.citi.umich.edu/projects/nfsv4/pnfs/block/download/console.txt