Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751580AbXECI0q (ORCPT ); Thu, 3 May 2007 04:26:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751674AbXECI0q (ORCPT ); Thu, 3 May 2007 04:26:46 -0400 Received: from holomorphy.com ([66.93.40.71]:55553 "EHLO holomorphy.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751580AbXECI0p (ORCPT ); Thu, 3 May 2007 04:26:45 -0400 Date: Thu, 3 May 2007 01:27:16 -0700 From: William Lee Irwin III To: Andrew Morton Cc: Christoph Lameter , Hugh Dickins , haveblue@ibm.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: 2.6.22 -mm merge plans: slub Message-ID: <20070503082716.GE19966@holomorphy.com> References: <20070430162007.ad46e153.akpm@linux-foundation.org> <20070501125559.9ab42896.akpm@linux-foundation.org> <20070503011515.0d89082b.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070503011515.0d89082b.akpm@linux-foundation.org> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1055 Lines: 22 On Thu, May 03, 2007 at 01:15:15AM -0700, Andrew Morton wrote: > That all seems to work as intended. > However with NR_CPUS=8 SPLIT_PTLOCK_CPUS=4, enabling SLUB=y crashes the > machine early in boot. > Too early for netconsole, no serial console. Wedges up uselessly with > CONFIG_XMON=n, does mysterious repeated uncontrollable exceptions with > CONFIG_XMON=y. This is all fairly typical for a powerpc/G5 crash :( > However I was able to glimpse some stuff as it flew past. Crash started in > flush_old_exec and ended in pgtable_free_tlb -> kmem_cache_free. I don't know > how to do better than that I'm afraid, unless I'm to hunt down a PCIE serial > card, perhaps. I've seen this crash in flush_old_exec() before. ISTR it being due to slub vs. pagetable alignment or something on that order. -- wli - 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/