Return-Path: Received: from mx2.netapp.com ([216.240.18.37]:26779 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752708Ab0H0NHm (ORCPT ); Fri, 27 Aug 2010 09:07:42 -0400 Message-ID: <4C77B873.8010306@netapp.com> Date: Fri, 27 Aug 2010 09:06:59 -0400 From: Bryan Schumaker To: Artem.Bityutskiy@nokia.com CC: "J. Bruce Fields" , Jens Axboe , "linux-nfs@vger.kernel.org" , Trond Myklebust , Christoph Hellwig Subject: Re: hang in writeback code on nfsv4 mount References: <20100825023425.GA24591@fieldses.org> <1282889595.2763.14.camel@localhost> <1282901780.12016.54.camel@localhost> In-Reply-To: <1282901780.12016.54.camel@localhost> Content-Type: text/plain; charset=UTF-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 The patch fixed my unmount hang. -Bryan On 08/27/2010 05:36 AM, Artem Bityutskiy wrote: > On Fri, 2010-08-27 at 09:13 +0300, Artem Bityutskiy wrote: >> From aa87b87c8555151bb8e083d0dba3fd68c5b0d811 Mon Sep 17 00:00:00 2001 >> From: Artem Bityutskiy >> Date: Fri, 27 Aug 2010 08:21:18 +0300 >> Subject: [PATCH] writeback: do not lose wakeup events when forking bdi threads > Bruce, FYI, with this patch I still cannot reproduce the issue, but > usually it happens faster. Again, too bad I cannot leave the test > running for days, because we are relocating and I have to pack all my > stuff. But when I come back from the conference, if the issue is still > there, I'll continue. > > Please, try the patch I sent. >