Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760835AbXLMKRm (ORCPT ); Thu, 13 Dec 2007 05:17:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752847AbXLMKRe (ORCPT ); Thu, 13 Dec 2007 05:17:34 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:48058 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751488AbXLMKRd (ORCPT ); Thu, 13 Dec 2007 05:17:33 -0500 Date: Thu, 13 Dec 2007 11:17:11 +0100 From: Ingo Molnar To: Dave Jones , linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , venkatesh.pallipadi@intel.com Subject: Re: [crash] kernel BUG at drivers/cpufreq/cpufreq.c:1060! Message-ID: <20071213101711.GN8977@elte.hu> References: <20071212091144.GA11986@elte.hu> <20071212164013.GA2359@redhat.com> <20071212181828.GA27675@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071212181828.GA27675@redhat.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=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 979 Lines: 23 * Dave Jones wrote: > > It _looks_ like we're leaking a refcount on that lock, but I don't > > see where. It's a shame you can't reproduce this easily, as > > cpufreq.debug=7 would give us more clues. (And > > CONFIG_CPUFREQ_DEBUG=y) > > So we're missing some unlocks in some error paths. It's feasible you > hit one of those. This patch should be the fix for that. since it's not really reproducible (i failed to get it since then), how about you push your fix upstream (it's an obviously correct fix), we consider this regression fixed and i'll re-notify you if there's still any problem left. It's not like there's any escape from make randconfig bootup test coverage in the long run ;-) 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/