Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753230AbXKSH4v (ORCPT ); Mon, 19 Nov 2007 02:56:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751582AbXKSH4m (ORCPT ); Mon, 19 Nov 2007 02:56:42 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:56671 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751284AbXKSH4l (ORCPT ); Mon, 19 Nov 2007 02:56:41 -0500 Date: Mon, 19 Nov 2007 08:56:27 +0100 From: Ingo Molnar To: Torsten Kaiser Cc: Andrew Morton , Linux Kernel list Subject: Re: 2.6.24-rc2-mm1: kcryptd vs lockdep Message-ID: <20071119075627.GB28432@elte.hu> References: <64bb37e0711182323v1e2a1341tfc7f20df771b988@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <64bb37e0711182323v1e2a1341tfc7f20df771b988@mail.gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.1.7-deb -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 813 Lines: 21 * Torsten Kaiser wrote: > Trying the last NFSv4 patch (but that patch is only the cause, why I > had lockdep enabled) I got this: > [ 64.550203] > [ 64.550205] ========================= > [ 64.552213] [ BUG: held lock freed! ] > [ 64.553633] ------------------------- > [ 64.555055] kcryptd/1022 is freeing memory > FFFF81011EBEFB00-FFFF81011EBEFB3F, with a lock still held there! so kcryptd frees a live, still in use bio? That could be a receipe for data corruption. Does SLUB_DEBUG (or SLAB_DEBUG) catch anything? Ingo - 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/