Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754973AbXJ3Ltz (ORCPT ); Tue, 30 Oct 2007 07:49:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752133AbXJ3Lts (ORCPT ); Tue, 30 Oct 2007 07:49:48 -0400 Received: from smtp.ustc.edu.cn ([202.38.64.16]:44802 "HELO ustc.edu.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with SMTP id S1751262AbXJ3Ltr (ORCPT ); Tue, 30 Oct 2007 07:49:47 -0400 Message-ID: <393744987.14537@ustc.edu.cn> X-EYOUMAIL-SMTPAUTH: wfg@mail.ustc.edu.cn Date: Tue, 30 Oct 2007 19:49:41 +0800 From: Fengguang Wu To: Florin Iucha Cc: Linux Kernel Mailing List , Trond Myklebust , Peter Zijlstra Subject: Re: pdflush stuck in D state with v2.6.24-rc1-192-gef49c32 References: <20071028152428.GJ7918@iucha.net> <20071030114250.GL25561@iucha.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071030114250.GL25561@iucha.net> X-GPG-Fingerprint: 53D2 DDCE AB5C 8DC6 188B 1CB1 F766 DA34 8D8B 1C6D User-Agent: Mutt/1.5.16 (2007-06-11) Message-Id: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1060 Lines: 28 On Tue, Oct 30, 2007 at 06:42:50AM -0500, Florin Iucha wrote: > On Tue, Oct 30, 2007 at 03:54:03PM +0800, Fengguang Wu wrote: > > It could be triggered by the more aggressive writeback behavior - the > > new code will keep on retrying as long as there are dirty inodes pending. > > > > Florin, would you try the attached patches against 2.6.24-git? > > They may generate big traffic of printk messages, but will help > > debug the problem. > > I have updated to v2.6.24-rc1-334-g82798a1. After using my computer > for two hours, I left the computer idle overnight. This morning, > pdflushd is again consuming 25% of a CPU. I will try Fengguang's > patches today. Thank you. Be sure to stop klogd ;-) A `dmesg` will be sufficient for debugging. btw, I cannot reproduce it with simple NFSv3 tests. Fengguang - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/