From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161290AbWG1UhS (ORCPT ); Fri, 28 Jul 2006 16:37:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161291AbWG1UhS (ORCPT ); Fri, 28 Jul 2006 16:37:18 -0400 Received: from omx1-ext.sgi.com ([192.48.179.11]:29081 "EHLO omx1.americas.sgi.com") by vger.kernel.org with ESMTP id S1161290AbWG1UhQ (ORCPT ); Fri, 28 Jul 2006 16:37:16 -0400 Date: Fri, 28 Jul 2006 13:36:41 -0700 (PDT) From: Christoph Lameter To: Thomas Gleixner cc: Pekka Enberg , LKML , Ingo Molnar , Arjan van de Ven , alokk@calsoftinc.com, kiran@scalex86.org Subject: Re: [BUG] Lockdep recursive locking in kmem_cache_free In-Reply-To: <1154118947.10196.10.camel@localhost.localdomain> Message-ID: References: <1154044607.27297.101.camel@localhost.localdomain> <84144f020607272222o7b1d0270p997b8e3bf07e39e7@mail.gmail.com> <1154067247.27297.104.camel@localhost.localdomain> <1154117501.10196.2.camel@localhost.localdomain> <1154118476.10196.5.camel@localhost.localdomain> <1154118947.10196.10.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 28 Jul 2006, Thomas Gleixner wrote: > Let me know, if you need more info What type of NUMA system is this? How many nodes? Is memory exhausted on some so that allocations are redirected? Are cpusets or memory policies used to redirect allocations? Maybe we get confused about local and remote objects due to fallback and contamination of the per node lists with foreign node objects. I have a patch here that make the slab allocations not fall back and insures that cpuset do not interfere but it involves patching the page allocator to not do fallback for slab allocations. Lets see if we can figure this one out first.