From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761519AbYDKTZx (ORCPT ); Fri, 11 Apr 2008 15:25:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757887AbYDKTZo (ORCPT ); Fri, 11 Apr 2008 15:25:44 -0400 Received: from relay1.sgi.com ([192.48.171.29]:39009 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756148AbYDKTZn (ORCPT ); Fri, 11 Apr 2008 15:25:43 -0400 Date: Fri, 11 Apr 2008 12:25:39 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: travis@sgi.com cc: Pekka Enberg , Ingo Molnar , linux-kernel@vger.kernel.org, Mel Gorman , Nick Piggin , Linus Torvalds , Andrew Morton , "Rafael J. Wysocki" Subject: Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/slab.c:2103!" In-Reply-To: <84144f020804110205u3d073e76lbcdd36ec293a169b@mail.gmail.com> Message-ID: References: <20080411074145.GA4944@elte.hu> <84144f020804110121l8444aafl4631071b34c458fe@mail.gmail.com> <84144f020804110150q367260f6k473380a1309db878@mail.gmail.com> <20080411085411.GA10181@elte.hu> <84144f020804110205u3d073e76lbcdd36ec293a169b@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 11 Apr 2008, Pekka Enberg wrote: > slab bug and I don't see any recent changes to the page allocator > either that would explain this. I also have an internal report that x86-git causes boot to fail with an 8p if one starts with a x86_64 config file and then converts to x86_32. Somehow the NR_CPUS is set to 255 in that case. Could this exhaust memory? I guess the per cpu cleanup work may figure in that area. Mike?