From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751289AbWGXTTs (ORCPT ); Mon, 24 Jul 2006 15:19:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751334AbWGXTTs (ORCPT ); Mon, 24 Jul 2006 15:19:48 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:7402 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S1751289AbWGXTTr (ORCPT ); Mon, 24 Jul 2006 15:19:47 -0400 Date: Mon, 24 Jul 2006 21:14:00 +0200 From: Ingo Molnar To: Arjan van de Ven Cc: Reuben Farrelly , Linux Kernel , John McCutchan , Andrew Morton , rml@novell.com, viro@zeniv.linux.org.uk Subject: Re: [patch] inotify: fix deadlock found by lockdep Message-ID: <20060724191400.GA14809@elte.hu> References: <20060713224800.6cbdbf5d.akpm@osdl.org> <44C2C90B.6090108@reub.net> <1153761671.3043.89.camel@laptopd505.fenrus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1153761671.3043.89.camel@laptopd505.fenrus.org> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: -2.9 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.9 required=5.9 tests=ALL_TRUSTED,AWL,BAYES_50 autolearn=no SpamAssassin version=3.0.3 -3.3 ALL_TRUSTED Did not pass through any untrusted hosts 0.5 BAYES_50 BODY: Bayesian spam probability is 40 to 60% [score: 0.5001] -0.1 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Arjan van de Ven wrote: > Subject: [patch] inotify: fix deadlock found by lockdep > From: Arjan van de Ven > > This is a real deadlock, a nice complex one: > (warning: long explanation follows so that Andrew can have a complete > patch description) > > it's an ABCDA deadlock: > > A iprune_mutex > B inode->inotify_mutex > C ih->mutex > D dev->ev_mutex wow! Acked-by: Ingo Molnar Ingo