From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964920AbWFARSe (ORCPT ); Thu, 1 Jun 2006 13:18:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964948AbWFARSe (ORCPT ); Thu, 1 Jun 2006 13:18:34 -0400 Received: from smtp.osdl.org ([65.172.181.4]:49027 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S964920AbWFARSe (ORCPT ); Thu, 1 Jun 2006 13:18:34 -0400 Date: Thu, 1 Jun 2006 10:22:34 -0700 From: Andrew Morton To: "Michal Piotrowski" Cc: gregkh@suse.de, mingo@elte.hu, arjan@linux.intel.com, linux-kernel@vger.kernel.org Subject: Re: 2.6.17-rc5-mm2 Message-Id: <20060601102234.4f7a9404.akpm@osdl.org> In-Reply-To: <6bffcb0e0606010851n75b49d83u9f43136b3108886c@mail.gmail.com> References: <20060601014806.e86b3cc0.akpm@osdl.org> <6bffcb0e0606010851n75b49d83u9f43136b3108886c@mail.gmail.com> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.17; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 1 Jun 2006 17:51:16 +0200 "Michal Piotrowski" wrote: > Hi, > > On 01/06/06, Andrew Morton wrote: > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc5/2.6.17-rc5-mm2/ > > > > I don't know why, but first bug appears only when avahi-daemon is > started. Second look like a problem with my camera. > http://www.stardust.webpages.pl/files/mm/2.6.17-rc5-mm2/bug_1.jpg For some reason the lockdep code expected that hardirqs would be enabled. > http://www.stardust.webpages.pl/files/mm/2.6.17-rc5-mm2/bug_2.jpg So it's claiming that we're taking multiple i_mutexes. I can't immediately see where we took the outermost i_mutex there. Nor is it immediately obvious why this is considered to be deadlockable? (lockdep tells us that a mutex was taken at "mutex_lock+0x8/0xa", which is fairly useless. We need to report who the caller of mutex_lock() was). > Here is config http://www.stardust.webpages.pl/files/mm/2.6.17-rc5-mm2/mm-config