Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759033AbZADSJT (ORCPT ); Sun, 4 Jan 2009 13:09:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751961AbZADSJJ (ORCPT ); Sun, 4 Jan 2009 13:09:09 -0500 Received: from viefep14-int.chello.at ([62.179.121.34]:45993 "EHLO viefep18-int.chello.at" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751921AbZADSJI (ORCPT ); Sun, 4 Jan 2009 13:09:08 -0500 X-SourceIP: 213.46.9.244 Subject: Re: [BUG] 2.6.28-git LOCKDEP: Possible recursive rq->lock From: Peter Zijlstra To: svaidy@linux.vnet.ibm.com Cc: Linux Kernel , Ingo Molnar , Balbir Singh , Andrew Morton , Mike Galbraith In-Reply-To: <20090104174450.GB4301@dirshya.in.ibm.com> References: <20090104174450.GB4301@dirshya.in.ibm.com> Content-Type: text/plain Date: Sun, 04 Jan 2009 19:08:43 +0100 Message-Id: <1231092523.29980.4.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.24.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 906 Lines: 24 On Sun, 2009-01-04 at 23:14 +0530, Vaidyanathan Srinivasan wrote: > Hi Ingo, > > Kernbench runs on latest Linux git tree stalled with the following > lockdep warning. > > Lockdep warning and lockup on Jan 3 Linus git tree > commit 7d3b56ba37a95f1f370f50258ed3954c304c524b > > kernbench run with two threads stalled. sched_mc was zero. > x86_64 system with 8 logical CPUs in dual socket quad core > configuration. > > I will post more information as I debug this warning/bug. Its ca109491f612aab5c8152207631c0444f63da97f, I've some ideas on how to fix this, just haven't gotten around to actually doing anything -- seeing how it was holidays and such.. -- 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/