Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752507AbaAXSnA (ORCPT ); Fri, 24 Jan 2014 13:43:00 -0500 Received: from mga02.intel.com ([134.134.136.20]:30660 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751884AbaAXSm5 (ORCPT ); Fri, 24 Jan 2014 13:42:57 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,714,1384329600"; d="scan'208";a="472000483" Message-ID: <52E2B431.5090705@intel.com> Date: Fri, 24 Jan 2014 10:42:57 -0800 From: Dave Hansen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Yinghai Lu CC: "H. Peter Anvin" , Ingo Molnar , Grygorii Strashko , Linux-MM , LKML , Santosh Shilimkar , Tejun Heo , Andrew Morton Subject: Re: Panic on 8-node system in memblock_virt_alloc_try_nid() References: <52E19C7D.7050603@intel.com> <52E28067.1060507@intel.com> <52E2AC5A.3000005@intel.com> <52E2AEA3.2020907@intel.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/24/2014 10:24 AM, Yinghai Lu wrote: > On Fri, Jan 24, 2014 at 10:19 AM, Dave Hansen wrote: >> FWIW, I did turn of memblock=debug. It eventually booted, but >> slooooooooooowly. > > then that is not a problem, as you are using 4k page mapping only. > and that printout is too spew... This means that, essentially, memblock=debug and KMEMCHECK/DEBUG_PAGEALLOC can't be used together. That's a shame because my DEBUG_PAGEALLOC config *broke* this code a few months ago, right? Oh well. >> How many problems in this code are we tracking, btw? This is at least >> 3, right? > > two problems: > 1. big numa system. > 2. Andrew's system with swiotlb. Can I ask politely for some more caution on your part in this area? This is two consecutive kernels where this code has broken my system. -- 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/