Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161163AbWJRPNF (ORCPT ); Wed, 18 Oct 2006 11:13:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161164AbWJRPNF (ORCPT ); Wed, 18 Oct 2006 11:13:05 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:19892 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S1161163AbWJRPNC (ORCPT ); Wed, 18 Oct 2006 11:13:02 -0400 Date: Wed, 18 Oct 2006 08:12:51 -0700 (PDT) From: Christoph Lameter To: Paul Mackerras cc: Will Schmidt , akpm@osdl.org, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: kernel BUG in __cache_alloc_node at linux-2.6.git/mm/slab.c:3177! In-Reply-To: <17717.50596.248553.816155@cargo.ozlabs.ibm.com> Message-ID: References: <1160764895.11239.14.camel@farscape> <1160769226.11239.22.camel@farscape> <1160773040.11239.28.camel@farscape> <1161026409.31903.15.camel@farscape> <1161031821.31903.28.camel@farscape> <17717.50596.248553.816155@cargo.ozlabs.ibm.com> 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 Content-Length: 1120 Lines: 28 On Wed, 18 Oct 2006, Paul Mackerras wrote: > Since this is a virtualized system there is every possibility that the > memory we get won't be divided into nodes in the nice neat manner you > seem to be expecting. It just depends on what memory the hypervisor > has free, and on what nodes, when the partition is booted. The only expectation is that memory is available on the node that you are bootstrapping the slab allocator from. > In other words, the assumption that node pfn ranges won't overlap is > completely untenable for us. That does not matter for this problem., > Linus' tree is currently broken for us. Any suggestions for how to > fix it, since I am not very familiar with the NUMA code? Have memory available for slab boot strap on node 0? Or modify the boot code in such a way that it runs on node 1 or any other node that has memory available. - 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/