From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964923AbXCKTUA (ORCPT ); Sun, 11 Mar 2007 15:20:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964930AbXCKTUA (ORCPT ); Sun, 11 Mar 2007 15:20:00 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:37593 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964923AbXCKTT7 (ORCPT ); Sun, 11 Mar 2007 15:19:59 -0400 Date: Sun, 11 Mar 2007 20:19:20 +0100 From: Ingo Molnar To: "Michael S. Tsirkin" Cc: Roland Dreier , Roland Dreier , general@lists.openfabrics.org, Linux Kernel Mailing List Subject: Re: lockdep question (was Re: IPoIB caused a kernel: BUG: soft lockup detected on CPU#0!) Message-ID: <20070311191920.GA7049@elte.hu> References: <45E552FC.4040305@mellanox.co.il> <20070311135051.GA31985@mellanox.co.il> <20070311150431.GE31985@mellanox.co.il> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070311150431.GE31985@mellanox.co.il> User-Agent: Mutt/1.4.2.2i X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.0.3 -2.0 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 * Michael S. Tsirkin wrote: > After adding some printks, I started getting these: > > [ 597.036720] BUG: MAX_STACK_TRACE_ENTRIES too low! this should go away if you double the size of MAX_STACK_TRACE_ENTRIES in kernel/lockdep_internals.h. (keep it a power of two) If it doesnt go away then it might signal some sort of leak. Ingo