From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750964AbWDRMqa (ORCPT ); Tue, 18 Apr 2006 08:46:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750959AbWDRMqa (ORCPT ); Tue, 18 Apr 2006 08:46:30 -0400 Received: from mail.gmx.de ([213.165.64.20]:61119 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S1750774AbWDRMq3 (ORCPT ); Tue, 18 Apr 2006 08:46:29 -0400 X-Authenticated: #14349625 Subject: Re: 2.6.16.1 & D state processes From: Mike Galbraith To: Srihari Vijayaraghavan Cc: Andrew Morton , linux-kernel@vger.kernel.org In-Reply-To: <20060418093521.41424.qmail@web52610.mail.yahoo.com> References: <20060418093521.41424.qmail@web52610.mail.yahoo.com> Content-Type: text/plain Date: Tue, 18 Apr 2006 14:47:02 +0200 Message-Id: <1145364422.7515.5.camel@homer> Mime-Version: 1.0 X-Mailer: Evolution 2.4.0 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2006-04-18 at 19:35 +1000, Srihari Vijayaraghavan wrote: > --- Mike Galbraith wrote: > > On Tue, 2006-04-18 at 15:07 +1000, Srihari > > Vijayaraghavan wrote: > > > io scheduler cfq registered (default) > > ... > > Hmm. Recovers [odd] but takes long time [odder]. > > I'd try to eliminate > > io scheduler at this point. > > Interesting. Considering the minimal .config, where I > haven't experienced this problem over a week uptime, > also having CFQ as the default elevator, do you still > believe CFQ is involved? (I guess if CFQ could be > influenced by other kernel configurations, then > perhaps another elevator might help. It's worth > trying.) I don't know that CFQ is involved. With it recovering though, the only thing I could think of was a request stucking in the io scheduler's gizzard for some reason. It's just a suggestion, and one you can try without even rebooting. -Mike