Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758634AbXETTV3 (ORCPT ); Sun, 20 May 2007 15:21:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755898AbXETTVV (ORCPT ); Sun, 20 May 2007 15:21:21 -0400 Received: from mail.screens.ru ([213.234.233.54]:59342 "EHLO mail.screens.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755847AbXETTVV (ORCPT ); Sun, 20 May 2007 15:21:21 -0400 Date: Sun, 20 May 2007 23:21:16 +0400 From: Oleg Nesterov To: zilvinas@wilibox.com Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: Kernel NFS lockd freezes notebook on shutdown (Linux 2.6.22-rc1 + CFS v12) Message-ID: <20070520192116.GA83@tv-sign.ru> References: <1179338441.4265.13.camel@zv.wilibox.com> <20070516121538.7b108c10.akpm@linux-foundation.org> <20070516225543.GA337@tv-sign.ru> <1179390065.4760.5.camel@zv.wilibox.com> <20070517184556.GA81@tv-sign.ru> <1179485230.3800.20.camel@zv.wilibox.com> <20070518202805.GA298@tv-sign.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1214 Lines: 28 On 05/20, zilvinas@wilibox.com wrote: > > I've done some more tests and quite frankly I think this is really related > to the dreaded ''fglrx.ko'' module. It seems to me that it is much easier > to reproduce the problem if that damn module is loaded. It does uses > workqueue. Then there is another driver ipw3945 loaded and it is required > to run binary only ''ipw3945d'' daemon just to start using wireless driver > ... > > In either way both these kernel modules are workqueue users. > > Btw, I had also tested kernel (compiled from the same source) but on > different laptop (EVO N800v), single core, Pentium M 2GHz. Kernel is not > freezing on shutdown, even loop nfs kernel stop/start - does not cause any > kernel panic as on nx9420 (Dual Core) laptop. And that with or without any > patch applied from Oleg. :(( Great. Even if not a bugfix, this patch is a reasonable cleanup anyway. Thank you very much for additional testing and report! Oleg. - 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/