Return-Path: Received: from smtp.nokia.com ([192.100.105.134]:46194 "EHLO mgw-mx09.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751825Ab0H0J5m (ORCPT ); Fri, 27 Aug 2010 05:57:42 -0400 Subject: Re: hang in writeback code on nfsv4 mount From: Artem Bityutskiy Reply-To: Artem.Bityutskiy@nokia.com To: "J. Bruce Fields" Cc: Jens Axboe , "linux-nfs@vger.kernel.org" , Trond Myklebust , Christoph Hellwig In-Reply-To: <1282889595.2763.14.camel@localhost> References: <20100825023425.GA24591@fieldses.org> <1282889595.2763.14.camel@localhost> Content-Type: text/plain; charset="UTF-8" Date: Fri, 27 Aug 2010 12:36:20 +0300 Message-ID: <1282901780.12016.54.camel@localhost> Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 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. -- Best Regards, Artem Bityutskiy (Артём Битюцкий)